I've found myself growing more dissatisfied with romantic standards over time. And, as I looked more into how the mod worked, I realized there were features that I didn't care about, fixes simler90 neglected, and of course room for 3t2 traits to be taken into consideration. The end result is 26 different mods(!) affecting the game's romance system.
I included and separately uploaded a lengthy documentation, because again 26 mods, so I ask you to please read that for a description of each mod. That said, here are some highlights:
First, let's talk traits. I've added trait consideration into two mods: "RomanticStandards-attraction", which drops a lot of the non-fix features of romantic standard's attraction calculation but does add an attraction boost to "irresistible" sims, and "RomanticStandards-respectcommitmentornot". You see, in a vanilla game sims already do have standards and are much more limited in actions they'll autonomously initiate/accept with a sim they aren't already in crush/love with if they or the other sim are already in a relationship with someone else, unless both sims are romance sims. Now sims with "commitment issues" can also ignore committed relationships regardless of aspiration and "hopeless romantic" romance sims will still respect the committed relationships of themselves and others. This affects the likelihood of autonomous affairs. There's also a "steady/engagement/marriage memories - commitment issues/hopeless romantic" mod which make sims with commitment issues get negative memories of entering those relationships and hopeless romantics get positive memories, regardless of aspiration.
A system you'll also see vastly changed is jealousy. I've previously released a mod that uses anti-jealousy potions, traits, and ACR token jealousy settings to determine when a sim should get jealous and default to only getting jealous if they're on a date with the sim or in a committed relationship with them, but now with "RomanticStandards-Jealousy" you'll get all that and one of my favorite RS features, that sims don't always react to jealousy scenarios the same way. They can appear angry if mean, horrified if they're neither nice nor mean and the event triggering the jealousy was severe enough (woohoo, kissing, making out), or frowning otherwise. A mean sim will still slap, but with not-so-mean sims a more outgoing sim may yell, whereas a shyer sim in the same situation will simply watch distressed. You may also find situations where, say, a nice sim sees their partner reject a romantic social from a stranger and they don't make a big deal out of it because, well, their partner was being loyal and they're nice enough to give the stranger some benefit of the doubt. So much more reasonable than Maxis's system!
Anyway I've been playing with these in my game for a while now, but I thought I'd put them up for beta first so I can get some feedback and be sure I'm happy with how they work before I release them officially.
5/11/20: Fixed an error that made the no jealousy trait not get recognized.
5/13/20: Updated the documentation, added a jealousyrereact mod, added an acr version of the jealousyfixes mod, and edited jealousy to take into consideration ACR's global and lot overrides as well as individual tokens.
5/22/20: Updated attraction, jealousy, and respect commitment to better account for polygamous relationships ('respect commitment' won't make sims not interact autonomously with spouse B because of the existence of spouse A, attraction will allow for sims to be attracted to all their spouses instead of just one, and jealousy won't give affair memories to sims interacting with a steady/fiancee/spouse if they have another steady/fiancee/spouse). Also increased the base odds for crush/love in slower feelings, since it seemed near-impossible before.
5/22/20: Fixed bug with postmortemrelflags.
5/28/20: Looser romantic restrictions is now loosened specifically for romance sims who aren't hopeless romantics and sims with commitment issues, so the autonomous affairs it encourages are in-character.
I am also now including "commitmentissues-hopelessromantic_steadyengagementmarriagememories" in the RAR, which makes whether steady/engagement/marriage memories are good or bad partly dependent on traits (hopeless romantics always get good memories regardless of aspiration, commitment issues always get bad memories regardless of aspiration). It wasn't included originally due to not being inspired directly by my examination of the original romantic standards mod (in fact, it can be used with the original RS without conflict), but I've realized for the official release I can make things less overwhelming by dividing the mods up among multiple posts and given that I feel it'll make sense to include this mod in one of the posts.
5/29/20: Fixed bug in looser romantic restrictions.
5/29/20: Fixed bug in jealousy.
7/4/20: commitmentissues-hopelessromantic_steadyengagementmarriagememories now also applies for table engagements.
7/10/20: Added a holiday kiss fix because sims could kiss their relatives (despite what Maxis originally intended), gay sims could autonomously kiss sims of another gender (even though straight sims wouldn't autonomously kiss sims of the same gender), and sometimes the BHAV wouldn't even finish checking all the sims to add them to the pie menu. Basically a mess all around.
7/17/20: Fixed issue with looser romantic restrictions that caused the checks to be onesided (would check if the initiating sim was a non-hopeless-romantic romance sim or had commitment-issues but wouldn't check the target), which isn't what I intended.
7/23/20: Fixed bug in jealousy mod that caused it to misidentify jealousy levels with ACR, made slower feelings two times slower.
7/25/20: Slower feelings now stops sims from falling in crush/love outside their gender preference, updated the recommended mods list in the documentation.
7/31/20: Added a rejected surprise engagement memory fix. Attraction now won't only give the beauty wish benefit to sims of the sim's preferred gender if they are bi.
8/2/20: A big update this time!
Jealousyfixes: Now the jealousy/parent romance emitters are properly killed after hot tub cuddling.
Attraction: Now secondary aspirations count towards attraction (inspired by HobbesEd's mod, but redone by myself). The fix for the beauty wish for bi sims now fully works.
Steady/Engagement/Marriage Memories: Now "go steady" memories only take into account primary aspiration not secondary, for consistency with engagement/marriage memories.
Greeting/Goodbye Kisses Restrictions: If you use a mod so teens don't lose love/crush but don't want teen/adult relationships, this will stop teens from kissing/being kissed by adults/elders in greeting/goodbye. Also stops sims who haven't kissed anyone yet from initiating greeting/goodbye kisses.
Jealousy: Added a new (experimental) feature has been added to jealousy so if sims A & B woohoo while Sim C is a room over but can see them through the window they'll be able to tell what's happening regardless of logic skill and get jealous.
Some mods have been unsorted. Thanks to SimNopke for that, the new fix, the seeing-through-window feature, and generally being helpful in finding & fixing issues/inconsistencies.
ETA: Added mirror link. File there is more recently updated than on SFS because the documentation has had the recommended mods section updated.
8/14/20: "Jealousy fixes" has also been replaced with an unsorted version, as it was supposed to be last update. Nopke also made an alternate version of "jealousy" so the default jealousy level (without no jealousy traits/potions/teas or ACR tokens)is "in love" instead of "steady/engaged", meaning sims will exhibit jealousy over sims they are in love with even if they aren't in a committed relationship/on a date. "Object interaction test fix" has been fixed to disable car woohoo/kiss/makeout from bigfoots unless you have the bigfoot romance mod and disable woohoo interactions for sims who haven't had their first kiss (like makeout interactions already are). Last update's unsorting also messed up the fix in "attraction" that stopped sims from being to check out their in-laws and also messed up the spouse check, I have refixed these issues.
8/23/20: Made versions of object interaction test fix and unrejectable socials fix that are compatible with visit other sims and no spoon wh
9/30/20: Tent woohoo reject fix has been replaced with tent woohoo fixes, which includes the additional fix that tent woohoo can invoke jealousy. Jealousy has been updated so sims in a different room now won't be able to detect rejected woohoo, only getting jealous/scolding if the woohoo is accepted.
11/26/20: Attraction should no longer stop spouses from being able to 'check sim out'. Tent woohoo fixes is desorted. New versions of looser romance restrictions and respect commitment or not so non-hopeless-romantic romance secondaries who either a) don't have a family primary or b) have a family primary but are dating/engaged/married to a romance primary/secondary will more readily initiate/accept romantic interactions with sims also in that category/with commitment issues/who are non-hopeless-romantic romance primaries. Also with looser romance restrictions v2, no sims will suddenly stop 'dating around' because they fell in love, no longer even being on the receiving end of new romantic interactions: they can continue to autonomously romantically interact with non-crushes/loves until they enter a committed relationship.
1/9/21: Sims in a committed relationship with multiple other sims won't get scolded when interacting with their committed partners.
🆕 12/19/21: Fixed issue with commitmentissues-hopelessromantic_steadyengagementmarriagememories.package, now traits should be properly found and recognized.