She was needy at that time, family issues, relationship issues, stress, and as she said, the MC was there for her, she needed someone and Josy wasn't there.
And that she started to like the MC that's obvious, I never said otherwise, but if you remember, in that beginning you mentioned she was alone, full of problems, only the MC was there for her, when they almost kissed for the first time she backed off, she knew she was doing something wrong but she needed it so she gave in, if Josy had been there she wouldn't have even considered something with the MC, even if she and Josy were fighting and taking a break.
I didn't say his feminine side had anything to do with sex, in the dialogue where Maya tells him why she thinks he's feminine she explains why, and that's basically what you wrote.
My comment about a lesbian having a thing for a guy who is feminine and good in bed wasn't directed at Maya, it was generalized.
I said that Maya liked him because he's feminine, I was wrong there, I should have said that the reason she got close to him and got along with him so easily is because he has that feminine side, and again, like you said, a lot of girls like that about him.
As for their relationship, especially in the scene where they watch a movie on TV that he gave her, to me that felt more like a moment between good friends than a couple, so I think that what she feels for the MC is not that strong, compared to Josy of course, and we see it again in the scene where he breaks up with them, Maya was sad, but she accepted it well, as for Josy...