...

I hate you. 

I hate you for leaving me. 

I hate you for using me. 

I hate you for taking advantage of me.

 I hate you for taking the love, attention, affection and advice I gave you and gave it to someone else. 

I hate you because you helped make me this way. 

I hate that I am becoming bitter because of you. 

I hate that you're happy with someone else.

 I hate that you're happy. 

I hate you.