WHATEVER YOU DO, DON'T DO COKE.
Seriously, the come down will have you questioing all the littleususpicions and paranoia you ever ever had when you were with her
"What did she mean by having a great time with Todd on new years?"
"Who did she really go to that concert with?"
Etc....
That and you'll question your own self-worth to torturous levels. Oh, and imagining her in sexual positions with her new man,
That's why i havent fucked with the stuff in years.
Cocaine is bad fucking news