She is sooo unfair!!!?

Ok this girl ive been talking to for month and half wnts space and what not. we've been having a BIG problem w/ this (prev. questions would give u full scoop)... ne way, i have given her her space and I've taken this time for myself. so she goes out and hangs out w/ her friends and does what ever she wants, just as she made clear that she wants this time to do her own thing and be "selfish" for once as she put it.... we even had conversation about ! she sys that if it comes to her having w/ someone else and the "deed" happens, she isnt going to hender it. in other words she is willing to be ual w/ other people if the moment strikes! so any way, i was out w/ friends at a club this weekend in detroit. one of the friends was an old female frined of mine.... tell me why this girl that I have clearly made clear that I love her and am "waiting" on while she goes through this phase of hers, gets mad at me for NOT telling her that i was going out of town w/ my female friend???? and so nw she wants nothing to do with me??? she tells me that she is trying to move on w/ her life and let me go (she took off the ring that i gave her).... and I'm sitting here like " i thought you just wanted space and room to grow" ... but it looks like to me that that was just an excuse of hers to get out of this...... what makes it worst is that she was my best friend before we crossed that LINE..... I'm hurt and I really do love her, and through out the relationship i made that clear to her.... crystal clear. but it's obvious "communication" isnt all it cracks up to be when it comes to relationships.