ask yourself worst case scenario are you willing to deal with a husband beating your brains out alone or with his buddies? if your willing to deal with that then dont worry about anything else... just go with the flow... marriages and gfs are rough areas to tread around. esp if theirs kids involved you never know what kind of wack job she's involved with or who the wack job has as friends... people do messed up things when they find their partners cheating on them.. not all but some do..