What should I do to get my friend's purse back?

I borrowed my friend's purse to go clubbin' the other night. Well, I drank a whole lot and ended up barfing in it as to not get it all over the mercedes I was riding in. I went home with a rich guy that night and ended up leaving the vomit purse at his house. He hasn't called me back and my friend keeps asking for it back. I don't know how to get a hold of him. I gave him my number but didn't get his number. I need to get her purse back. It was a $500 purse and I can't replace it.