I have been with my girlfriend for over 2 years, we've always been happy, never argued (yep), and things have been good in the bedroom.

She's gone off to university, and has been going out, getting drunk, having fun, like students do.

But now she tells me that, even though everything is the same between us, that she wants to experiment. If she goes out she wants to feel free to do what she feels like, and as a human being, she is attracted to some members of the opposite sex.

I want to stay with her, she wants to too, we're madly in love, but she wants more, she wants both, safe, positive, caring long term boyfriend, and random attractive pissed bloke.

I could stop the relationship right now, as many people would, but I realy don't want to.
I've always hated the phrase "ignorance is bliss" but i'm starting to get used to the idea, i'm not a confident person, i know i'm very lucky to have her (her looks and personality are better than I deserve) i'l be distraught if we finish, she's the one good thing in my life.
Can it get any better or is this relationship doomed?

Please someone tell me something useful! I need help.