<human>: We dated for 2.5 years from 2009 -2011. She broke up with me in June of 2011, and we got back together, April of this year (2013). Our past relationship did not end well, she cheated on me, treated me like crap, was not fun. Anyways, we reconnected, I thought i was over all that and I still cared for her. But, as the months have gone by, I can't seem to let go of the past and its not good for either of us. I've talked about it with her, she says she loves me a lot, wants to be with me, I told her id try. Which i did, but its not working. I care about her, I dont want to hurt her and ive never had to break up with someone I was this intimate with.

Any and all tips would be very beneficial to me.

I am seeing her today, i told her "we need to talk" which I THINK is the universal sign of an impending break up. Even though its not a secret im not happy, i thought a not-so-subtle hint would help her prepare.

Can you give me the gist of the text in a nutshell?
<bot>: Breaking up with a Girlfriend I dated for 2.5 years, 4 years ago, got back together..im not happy.  need some tips on letting her down easy.