I've recently been hanging out with this girl.

There are a few problems, I don't feel like I have demonstrated enough masculinity, I don't feel the right man to woman vibe.

She stays over at my house for days, but something doesn't seem right.

The real issue is that when we are hanging out with our friends, she pays so much fucking attention to the other guys, it's like I am not even there. The other guys all have girlfriends.

I am not a conciliation prize

When we go out to a bar, she ends up talking to other guys, and then later on telling me about how they have been texting her. (is this just to make me jealous?)

But then when we are one on one she wants to fuck. Am I just a back up plan being used?

Can you please explain why she would be doing this/acting this way?