Wanted serious and now denying my existence?

We started as friends. I was kinda in his group of friends and i knew from them that he was into me. At some point he told me that and said he wants to try something serious with me.
But i was still thinking about the last guy who broke my heart and i didn’t wanted to lead him wrong..

As time went by we became really really close friends. He was there for me in the hardest times and I was there in his.
I started to develop feelings.. we had sex a few times. And since that, he took thousend steps back. He would only be in for sex. But no more frtiendship. What have i done wrong?

Wanted serious and now denying my existence?
Post Opinion