What is the best song to send her as a farewell Gift...?

A girl messed arround with my life...after 6 months telling me how much i ment for her and how serious she wanted our relationship to get...i found out how fake was all that after i saw her dating her Ex-boyfriend...i don,t want to talk to her anymore..but i want to give her one last music video to show her how fake she was..and how lies was the easiest thing she could do...((iam sorry but iam flamed and she thinks that iam the biggest fool ever known just because i shown her how much i loved her...apperantly she just was never in Love with me from the start but instead she wanted to keep me around till her Ex gets back to her))