Normally I don't like poems with this type of rhyme scheme. This one stands out to me though with a few versus, particularly;
"You took it further than I thought you could
And then lied, like I knew you would"
Wonderful! I enjoy the contrast and the overall bitterness and hurt. As the poem went on, though, it seemed to lose it's edge. Your use of 'thru' instead of 'through' takes away from the serious tone I had adapted to from the beginning. Overall, though, I think this is a nice poem.