What do you make of this conversation with my ex today?

My ex instant messenged me today asking if he and i could be friends? So i said sure he than proceded to say that he see’s in my picture I have lost quite a few pounds and I look really good.He asked what was my secret.Than he asked if I could show him more pictures of me. What is he up too does he still like me or something. He also sent a request to add me to his yahoo friends list again.