Thank you with a tad of sarcasm

Thank you is typically used as a form of appreciation, normally said after a large task to even small mundane things.
When I said thank you to you the first time, you were helping me pick out my glasses.
For helping me be confident at work; thank you.
For making me smile; thank you.
For listening to me when I was spilling out my issues; thank you.
For being there for me; thank you.
Don't get me wrong, I appreciate everything you've done for me...
But, I wasn't enough was I?
For leading me on; thank you.
For getting my hopes up only to break them; thank you. 
For bullying me when you didn't get your way; thank you.
For cheating on me; ... thank you for this one especially.
For making me waste my time; thank you.
And just like that, from happy to broken; you're just another one, someone who walked in and left. 
Thank you.