Why do I still miss him and think about him. Could he still miss me as well?

My manager and I started hooking up 6 months ago but agreed if only he wouldn't hook up with anyone else at my job and he said at that moment he does not want anything serious which I agreed cause we both just got out of long term relationships. Over the months I had a suspicion that he was hooking up with another girl at my job for a while but then she got a boyfriend so they been stopped. I kept asking him if he was hooking up with her before she into a relationship and he kept denying it and said he would never do that because he knows how upset I would get. Through out the months I could tell we were both getting more intimate with each. We would have deeps talks, he cooked for us while watching movies together, cuddle, told me he really likes me, that he would date me if I quit my job that way he doesn't get fired becasue its a big no no for him to date any of his employees. Then he told one of my friends at work that he loves latinas even though they are a little crazy and that he was seeing this mexican girl, he said that supposedly I wasn't too lovey dovey and that he told her that he wasn't ready for a relationship since he just got out of a 5 year relationship. Basically just talking about me to my friend at work. Which made me feel good that he was talking about me since I knew he did like me because unfortunately I did fall for him and really enjoy being with him. He makes me laugh, the sex is good, listens to me and understands me. Then sadly I came to find out that he actually did hook up with that one girl at work that I had suspicion about before she got into a relationship and that he actually got her pregnant and took her to get abortion. I felt completely heartbroken. I called him and told him I knew I everything between him and her that I never want to speak or be near him ever again and that he lost all of my trust and respect. For the 1st time at work he does not look my way at work and we dont speak at all cause he knows what he did

Why do I still miss him and think about him. Could he still miss me as well?
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