Also, there is nothing properly explaining to be in a Romantic Relationship, both in game and the Wiki doesnt, if anything I would suspect the feature isnt even added currently as in game even becoming Best Friends doesnt give you the option to date an NPC. (It might due to be specific to an NPC then every NPC, IDK but if thats the case the Wiki didnt even list it out)
Or it could be my Character being Female and most she is close with are females, could be a trait thing locked behind just to unlock it, but with all due respect why do that, all in all I am lost as there is nothing properly explaining it.