Im pretty sure its the hormones. These darn hormones have been makin me feel all kind of ways. Lol. Have you told your bf
But then again I am one to put my all In a relationship and do what it takes to make it work unless its just not worth trying to do so.
I am bi too and I go through spurts where I want am attracted to females more than males vice versa might be hormones due to pregnacy might not be cause I go through theses moments all the time I have always just dated a guy or just dated a girl never both at the same time and they have all been what I felt thought was a serious relationships and ended cause they ended it or over a very legit reason like them cheating etc.
Maybe hormones, I think I read that on the sexual health forum. I'm not really sure tho, mama.