gotta agree with OP the whole gaurdian thing is utter trash. ruins the whole story for me. So much doesnt make sense, i mean one thing that urks me greatly being, you are made aware the entire game he is omni present witnessing your decisions and actions. So he witnesses my careful and determined efforts to romance shadowheart. having witnessed them bearing fruit and our love blossom he still decides i might be swayed into making out with him in all his repugnant squid form... i mean WTF larian its not even a female squid FFS (if such things even exist in illithid)
This isn't a problem limited to him, sadly. ALL characters want to jump you out of nowhere even if you're clearly already dating someone else or if you barely spoke to them at all. It's absolutely ridiculous and well worth the memes.
This said...
...Emperor is my fav romance and I'm not even joking, I want more!
Mindflayers are genderless once they transform because obviously they only reproduce through tadpole infestation so yeah no, no luck if you're looking for a girl squid in the Forgotten Realms lol. I do like to headcanon that Omeluum might have been a woman before they transformed, tho.
