Sex Doesn't Equal Relationship ...Lesson for a 30year Old

I shouldve know better but I fell for the game, or did I? Upon meeting my sons mentor, I had no urge or sexual feelings toward him. He is actally not my type at all. As time went on and conversations grew on me, I became attracted to him. I love his personality and akward humor. He is 3 almost 4 years younger than me...I've never 'dated' anyone younger than me so I thought this would be fun. All of a sudden he began flirting with me and I loved it. I hadn't had sex in maybe 6mths so I was beyond horny but I knew this was a thin line to cross because of the relationship he had with my son. The mentor would text me flirtly messages and would ask me if he could come see me. I declined determined to keep it professional as long as I could, especially after he told me he was not interested in a relationship at all. Everytime I seen him, he'd ask to 'come over and tuck me in' or he'd tell me how cute I was....One day after my sons football game he text me and said he couldnt stop thinking about me and how beautiful he thought I was and if he could come by and watch a movie. I knew he could care less about a movie but I invited him over. We had known each other almost 3 months. He came over and we had sex. I loved it. I text him the next day and he responded hours later.... no big deal I thought. I assumed he would text me and tell me how much he enjoyed it and wanted to spend more time with me. Ha! Nope. Its been about 6 weeks since then and we've had sex a few times since...he hasnt taken me on a date and I'm lucky if he responds to my texts the same day. He doesnt care about my interest, I havent heard the words or seen the text 'beautiful' since he got what he wanted. No flowers, no movies, no long conversations, just sex. He told me he had no interest in a relationship but I thought if I had sex with him he'd change his mind. Ha. How childish was that?  Hes not interested in any of that. I asked him to take me to the movies a month ago he said ok but he never did.  He calls or texts when he wants. This is totally unlike me. I have to take my power back. Its funny because I've said I was taking my power back from him once or twice before and the last time he text and asked to come over I quickly said YES and he text back later and said he couldnt make it. Wow. Imagine that feeling. So yea, I'm threw. I'm worth so much more, how I got in this tangled web is beyond me. He clearly told me he didnt want a girlfriend but for some reason it didnt register. I played myself....but its not to late to regain myself. Thanks for listening.