-she thinks I am a great guy and she really wanted it to work for me, so much so she was trying to talk herself into it
Oh how gracious of her. She's disowning responsibility and devaluing you at the same time by saying she just isn't into you and there's nothing she can do about that, because you're a great guy but you're just not good enough for her.
-she thought because I was so sure and she wasn't, that maybe it was because she was missing something or too damaged to see it
A little self-awareness there, although why didn't she express that when you were in it?
-there were times she thought this wasn't the relationship for her and sometimes she thought it could work
Unstable sense of self, as who she thinks she is changes, her perception of the relationship changes with it.
-she thought our trip was magical (she got caught up in the fantasy) and she wanted us to be magical, but after I left she realized her feelings weren't as strong as mine and she wouldn't catch up to me.
Lack of object constancy, out of site out of mind, when you're not physically with her she has a very difficult time connecting with who you are and what it feels like to be in a relationship with you, so in a sense the relationship doesn't exist when you're not with her.
All traits of the disorder and she really doesn't have a choice, so the only choice is whether or not we want to put up with it.