Online Dating Blog

I just need to know what goes through a girls mind cuz i’m f*cking confused as hell!!
I met this girl (crystal -age 25, i’m 27) back in may of 2008 on ‘myspace’ (i normally do not meet girls off of that, but i tried it anyways). She said that she was drawn to me because of how sincere i was in my webpage and that i seemed to be an honest person. we talked for like 3months online without meeting in person or talking over the phone. the first time we met each other was in may for the gay pride parade in long beach.
like 3weeks later we started dating. we dated for 3months and it was very hard dating her during that time only because her family was not okay with her being a lesbian. since she and i respected her families opinion we kept the p.d.a. under control. during the time that we had been dating she had bad mouthed her ex-girlfriend, chanel. they dated for six months in 2007. according to crystal she said that chanel did drugs, lied to her, cheated on her, wasn’t there for her emotionally and sometimes physically. so, since i didn’t know this girl chanel i had no choice, but trust her judgement on this girl.
after 3months of dating she broke it off because she said that she wasn’t emotionally ready to date and that she didn’t want to put me through the pain of not being able to ‘show’ my love for her. so, i was heartbroken of course, but i respected her wishes.
two weeks later she ends up not inviting me to her birthday and invited chanel. she is now dating chanel. i had something of crystals and she came to pick it up at my place. on her way to my place she had been texting me some really mean words i.e. “You f*cking b*tch – i wish you would just be out of my life” i asked her why she was being so mean towards me and why she lied to me about ‘not being emotionally ready for a relationship’. all i wanted was the truth. she lashed out on me (no surprise) and said that she didn’t hold grudges (towards chanel) and that her personal life was no longer my business.
i kept calm during the whole thing because i’m not one to start up drama. she went from being madly in love with me to hating my f*cking guts. i was and still am very loving and respectful towards her.
so, my question to you women is this:
what does it mean when a female (crystal) does that???
considering that her ex (chanel) used drugs for years, lied to her in the past and cheated on her several times…my question to you is this: do people change?? cuz in my mind, once a cheater ALWAYS a cheater! i honestly think chanel is just trying to wooo her for a bit to get crystals attention and then once she has her full attention, her bad habits will start to slowly come back. am i wrong?