Should I just delete and move on? or confront?

So I started speaking to this man. He was someone I had know for a really long time.

Over the first few months we were texting a lot, he would ask e about my day, start conversations etc. It got to the point where he called me out and said that I needed to meet him otherwise he had no interest in continuing to talk because the idea of it was messing with his head. I gave in and went to meet him. When I was there it was chill, we hung out and it was pretty clear he wanted to do more. He initiated all of the sexual stuff and it resulted in us doing the deed. I then insisted I needed to go home and he then insisted on dropping me. 

He then continued to text me.... 

its now been a year and we have not met up, we haven't done anything sexual again and there has been little to no flirting but there is a lot texting, instagramming and talking virtually on apps. 

He meets his friends nearly every weekend but has never invited me to any of these social interactions. 

I just feel used. I feel like he is using me for attention and his ego and that he doesn't really care for me. I am conflicted as to whether I should confront him on this or whether its even worth the effort and to just stop replying to his messages.