I've been married one year and with my spouse for 4 years. He has cross-dressing fetishes which are fine by me. He has not shared this with anyone else, only myself. Wigs, pantyhose, underwear..... It's all ok with me. He also likes anal penetration. Lately it has become an obsession of his. Over the past 8 months we have had problems because he emails and texts other men about his fantasies (that meets via Craigslist) and uses that to stimulate himself while he's dressed and masterbating. We came to agreement that he would not use other people but would allow me to please him. Now he wants to have a 3some with me and another man. I'm not comfortable with that so he just wants to go out and have sex with a man, alone. He says it's fair because he had offered to let me play a part in it. I find it as cheating and being unloyal. Ive offered to play with him just us two but he says it's not the same, it must be a guy. What can I do?