tbh I feel like the love they have for one another is a lot more akin to familial love rather than romantic, though I understand your disappointment....for the ending you're looking for I think you need "Death Is The Only Ending For The Villainess"
(I will say it's not actually shown as much as they could have)
Ah beans. I was thinking of "I Thought It Was a Common Isekai Story" my bad.
spoilers:
The main FL (reincarnated in villainess's body) ends up w/ the dude the end of the series the original version of the villainess waits in the system for the original story's FL to finish out the loop so they can move on together because she was going to show her what love was... also they both became like self aware/asked for possession in the story because of their drive to protect one another and their rage/desperation to prevent the other from suffering repeatedly it's not super obvious but I was thinking of "similar story vibe with a surprise queer-adjacent ending" hence me saying "it's not super explicit"

Is GL forbidden ? Like ???