If she is really into you, then you should be able to talk to her about this. If she still isn't interested in a commitment to you, you may need to back away and find someone who more closely shares your goals and values.
I don't know if this is relevant, but sometimes a woman has a lot of guy friends because she is insecure. I had an ex-girlfriend like that, and when I found out that she was cheating on me, it wasn't totally surprising. And I had another ex-girlfriend who got raped on two separate occasions when she was hanging out with a supposedly platonic guy friend. (Two different guys on the two different occasions.)
Good decisions come from experience. Experience comes from bad decisions.