Is he playing me?

I met this guy in college, and we became friends. 4 months later, he tells me that he loves me and hints to having a future together. During the fifth month since our meeting, I asked if he had me in his future plans so everything would be clear, and he told me that he has no intention of ever leaving my side. Two weeks later, I mention an official relationship and boom!! he decides that we are great friends but he's not ready for one. However, he still treats me the same way as a lover and ignores me when I question his behavior. Whenever I try to ignore him, he's like:"are you sick of me?".

I meant a boyfriend- girlfriend relationship. Thanks for the advice.

It's fear I believe. He was heartbroken before and his ex is a crazy physco who threatens him to kill herself if he doesn't get back to her and has serious jealousy issues.

Psycho*. She even verbally attacked me because she saw us chatting.