Recurring ex-boyfriend dreams after 18 yrs

The person that I am dreaming about is a guy that I dated off and on for about 2 years around the age of 15. I am now 33. The first dream that I can remember having about him was about two years later. It was very vivid like he needed help or something. I had a few of those. Then, he showed up at a party I was at. He said he would soon be moving and had hoped to see me before he did so. I felt like i had mentally connected with him. Over the years, I had several more boyfriends and would still dream about him from time to time. I am now married (have been for 5 years) and seem to be dreaming about him pretty frequently. I should stop here and say that I did see him again briefly about 5-6 years ago at a bar. I with my fiance, he with his. Needless to say, I was drunk as was he and I dont think I made a very good impression (wanting to hug him 3 times when I saw him, mentioning the dream, etc)Anyway, these current dreams, they are not sexual (he was not a good lover) but I always feel so warm and content and happy, protected, etc. when he is there in my dream. Why am I still dreaming about him after all this time? I was a teenager when we dated, I had other teenage boyfriends, its not like he was the only one. PLEASE HELP!