Married and sometimes thinking about someone else

[loveproblems]

When I was in high school I was rejected by a guy and later on he came to me and I rejected him out of hurt. We went through high school never talked, in fact we never even saw each other. He got married right out of high school and has children. I married and I have children as well. About 5-6 months ago I started dreaming of this guy. Sometimes I think about him during the day and what I would say to him if I ever saw him again. The other night I dreamed about him and it turned sexual, waking up to having my husband beside of me. I do not know what to do. I love my husband and my kids and have a great life, but I do not know why I keep thinking about him. It has been over 10 years!!! Someone please give me some advice!!!