Is it normal to cheat, end the affair, but miss the individual?

So I've been with my boyfriend for 3 years now, and in the begining of our relationship sex wasnt an issue, we would get it on frequently and it was normal... but as time progressed he stopped caring and would much rather watch porn to get off instead... i thought maybe this could be normal, or a phase so i just ignored it.. however, one day i found a video on his phone of a girl blowing him in his car.. i was so i upset i asked him what he was doing and he said it was from way before he met me.. i forgave him, but i was still very mad inside.. i went to work that night and there was this guy ive always had a crush on and we started talking.. eventually this crush turned into something else.. we were constantly meeting up after work and one thing led to another.. i cheated on my boyfriend for 6 months, i figured if i wasnt getting it at home id seek elsewhere.. eventually though, the guilt caught on and i decided that before the year ended i should end this side relationship and be faithful once again, so i did, i sent the guy a text letting him know how it was nice to have met him but i felt it was time to do things right..
Now, i see him at work every night, and dont even say hi to him we dont even speak to each other, we avoid looking at each other... i dont know if its normal to miss him? because i do.. but in a physical way.. i dont know if i should have ended it, because i think about him every day.. Im not in love with him, in fact his personality agrivates me, and i dont visualize myself with him, because we are very different.. but i miss the sex we had together... is this normal?