Most Helpful Girl
To answer your first question: I don't really think it's weird. By what I hear and have read, some women have this fear and insecurity that the guy will cheat on them with a girl or guy. Some were straight foward with their answer and said that they don't like the thought of knowing the guy they're with have had sex with another man. But these women were straight so I don't know about women who are bi curious or actually experimented.
The only bi sexual woman I know that dated a bisexual guy was my best friend neighbor..
Now to answer your second question: I dated a guy that was bi sexual. It didn't work out because he had a high sex drive and I'm into having sex right now until after marriage.