My wife had an affair earlier this year and it ended after 6 weeks. We recently met a friend in the neighborhood and one time when I was not with her, he came on to her very strongly and later sent her text messages letting her know he found her very attractive and wanted to have sex with her and nobody would find out. As hard as it was, she confided in me. She told me she is not attracted to him, but his compliments and simply talking to him before and after he came on to her were like “hits” of the drug she experienced with her AP earlier this year. She told him she was no interested and to never text her again. About 6 weeks went by and then he texted her again to check in with her. She told him to never text again. About 3 weeks later, he texted again. My wife doesn't want me to call, text, or approach him, but I feel like he is a threat to my marriage and disrespecting my wife, so he is leaving me no other choice. By the way, he admitted to her he already had at least one affair recently on his wife. Should I approach the married man that won’t stop texting my wife or perhaps his wife? What would you recommend?