It sounds to me like your gf is insecure and needs her circle of guy friends to keep her ego in tact. It sounds like her relationship with these different guys is that they provide each other with a back up to message their fragile egos when or if a relationship doesn't work out. In other words, if this new relationship doesnt work out, I still have a male presence that will remind me that I am desirable, sexy, a supportive person, worthy to try again.

Often some girls have more "guy" friends because they provide more "fix it" and are not just "random and emotionally fragile" like an equal group of women freinds would be. Often women can be somewhat jealous and their advice can be based on some kind of shallowness because a girl might be "more attractive" to men and gets "more" opportunities at relationships.

Some girls also like to have male friends around so that if she encounters something in her relationship with a guy that she doesn't understand, well, she has a guy friend who may be able to interpret whatever she may not see.

However, I would be concerned about that sex talk because it sounds to me like she has some "friends with benefits" going on there.

I can't blame you for being concerned about this. And the fact that you looked at her private phone messages, that was invading her privacy. However, she should not be "hiding" things from you either. Sigh...we have so much technology today that it is hard not to look at another persons private conversations to see if you can trust that person.

Open Eyes