u/Bigdaddy49404

As of recently my wife and I are going through a rough patch in our marriage so we are not sleeping in the same bed. Usually she would take the couch but as of lately she has been sleeping at the neighbors house. He has told me before that he wanted to have sex with my wife and it makes me very uncomfortable that she sleeps on the couch when it's just the 2 of the there. I don't believe she is cheating on me since he's is a weird guy but I still dont think it's okay. So am I the asshole for saying I don't want her there?