Wow, paranoia is such an awful thing. Why do you all feel the need to spread it amongst others?
Believe it or not there are some men who are faithful. Yes really, shocking isn't it?
My DH has single mates. He frequently goes drinking with them and yes, they sometimes end up somewhere after the pub and (OMG!) there might be women there. Oh and they drink coffee too (usually in an attempt to sober up enough to walk home in a straight line). It is not a shagfest. He would invite them back here, singles and all, except that is likely to get him shot. WTF would I want a rabble of pissheads in my lounge after closing time when some other poor sucker can have them instead?
But I don't give a shit about any of it because I love and trust him, same as he loves and trusts me.