Is this psycho going to leave us alone?

It's a long story but I'll try to make it short... I had an affair with my husband's friend at work, they're both truck drivers. It lasted 1 month and I could no longer living a lie and confessed everything to my husband. My husband introduced me to his friend and the guy was all over me. My husband sent him pictures of me (I know, crazy... ), gave him my cell number, told him it's ok to call me, etc. My husband was very neglectful of me, and it appears that he pushed me to this guy and duh I fell for him (I was needy... the guy talked to me, gave me attention, etc). Anyway, after I told my husband everything, he confronted the guy and he denied everything, and said I was sleeping with another guy we knew (lie!!!). He then continued calling my husband as if nothing happened, pretending still to be friends. My husband at first didn't want to believe me, but I guess he saw there was no point of me making this story up. So he forgave me and we're working on the marriage. But the guy still calls and wants to be friends with him. I don't get it!! And my husband answers the phone and replies to his texts. He said he's not "too friendly" anymore, and only talks about work. I get very uncomfortable with this, as I know I did something very wrong and I want this guy out of our life. How can this guy leave us alone?