I'm in a strange relationship.....?

Okay I met this guy online. We both said we weren't looking for anything too serious because we both just got out of long relationships. We started dating casualy and it turned ual soon thereafter. We talk to eachother almost everyday, however when we talk we talk for hours about his ex. He askes me advice, tells me of his heartache, and how he can't stand feeling the way he does. I know it's wierd that we talk about this but it's not like I didn't know he wasn't over his ex. I talk about my ex also but we mostly talk about him. He says I really help, he loves talking to me, and I'm such a good person. I'm starting to feel like his psyclogist rather than whatever the hell I am. Friend? Lover? Random person he occasionally has with? I feel like I shouldn't even waste my time. He says he's going to move out of state because he can't stand to live like he's living. What should I do?