I made a mistake and I'm in a mess... How can this be solved?

It all started with my husband giving my cell number and sending pictures of me (dressed!) to a coworker who I’m gonna call Mr. Loonie. Up until then I had no idea what was going on. Then the guy called me to ask a grammar question (he was studying for his GED), and then after that we started talking. My husband was very absent, neglectful – we’ve been married for 10 yrs, no children. So a connection developed between Loonie and I, and one day my husband introduced me to him. He basically gave me the attention my husband wasn’t giving me, and I had tried going to counseling with hubbie but he didn’t wanna go. So I ended up cheating on my husband with Loonie, it lasted 1 month. I felt so terrible and I sat down with my husband one day and confessed. He didn’t appear so shocked, and said he forgave me. Then the next day he went to work he confronted Loonie and he denied everything, and called me a psycho! He was outraged that I told my husband saying I messed up their friendship, and that I was going to pay for it. Mind you, he has a gf he lives with for many yrs that he said he was trying to “get rid of”. He continued calling and texting my husband as if nothing happened, and my husband started doubting that I told him the truth. Then one day I guess it finally dawned on him, and he told Loonie he needs to admit it. Loonie got mad and disappeared. Then a guy at their job is now making fun of Loonie, calling me his gf (I hate that!), because Loonie used to run his mouth at work saying he was going to marry me one day and take me away from my husband. My husband said nothing about it (I wish he stopped that). Then a common friend called me Monday saying be careful because Loonie said when he sees you guys he is going to hit you and your husband. He’s mad because he said we’re spreading rumors about him at work. I don’t work there and I don’t go there, and my husband doesn’t talk to anyone about Loonie, and is hardly at the office. So all we want is peace. The mistake is done and I am deeply regretful for doing it, but I’m moving on. I don’t want to fight with anyone. Loonie and gf have an extensive criminal record for fights, and Loonie told us he would even pay to be in a fight, because he loves it. He’s psycho and we want him away from us. At this point, is there anything we can do legally to protect ourselves, since he didn’t threaten us directly or hit us? Thank you.