How to get over someone you let go but the feelings wont go away?

I met this person online about 7 years ago and we were just online friends and nothing more. He was my friend even before my husband. He was always the person I confided and talked to about everything in my life and vice versa. He was always there for me to listen. I married my husband and he married his girlfriend. Life was great til I found out that my husband had cheated on me when he was stationed overseas before we got married and when he deployed overseas, he started talking to the same chick he cheated on me in germany. No Physical encountered from that but then emotionally for me it was crushing me really bad. I adored my husband, he was my life and finding out was so hard for me. I thought about leaving him but somehow I agreed to stay and see if we can patch things up. About a year later, things were going ok. Trying to work things out but somehow my feelings for my husband wasnt the same and thinking about what he did made me really bitter. There were days that I would just be depressed and angry but somedays I was ok then I found my friend back again. Its prolly been almost a year since I talked to him. He had a happy marriage and then he got deployed. I didnt even know he was having issues with his wife but he didnt sound like his usual self so I finally asked him if everything was ok and thats how everything started. I finally told him about what happened about my husband and so he opened up with what him and his wife went thru. We talked almost everyday and comforted each other. Finally his wife left him, cleaned him out and left their house empty. I really feel bad for him because he is such a great guy and a good soldier. Talking to him everyday made me think about my relationship...Here I am saving myself for a guy that doesnt even appreciate what sacrifices I went thru for him, waiting for him from a deployment, I was faithful and all and there was my friend doing everything to save his marriage and his wife couldnt even give him the courtesy to be strong so the more I talked to him the more I was falling for him. Finally we had a conversation about how he never asked me out and he said he was too shy and then I started dating my husband and how he always have thought that I was beautiful and thats when things went crazy. It was all the feelings that I used to feel like when I started dating my husband, I am feeling again. I was to the point of leaving my husband because I couldnt take the anger I felt for him because of what he did and then the feeling I had for my friend. It all came crashing down when I found out I was pregnant. my husband tried to get pregnant for 3 years and nothing happen and then as I was to the point of leaving, I got pregnant with my son. I was crushed. I had to make a decision. my friend said that he'll take care of me and still be with me even if I was pregnant but I had to do what was best for this baby so I broke it off with him and stayed with my hubby. It was the hardest thing to do but I wanted my son to have a father because both of my husband and I didnt grow up with our fathers. We have worked on our marriage and things are ok now and my friend has moved on as well but still talk to each other once in awhile but it still hurts me to think about what could've been. I hate when he says he misses talking to me. He doesnt really say anything more but him just lingering around is torture. I dunno if he has really moved on or he feels the same way. I wish it would be just easy to move on but its been crappy! I just don't know what to do sometimes. Hide it in my chest