I also advise caution. Remember that the father can play hardball on custody time also. He has a right to make decisions about his daughter including who he introduces her to. In most states a motion to not allow contact with OW or OM isn't worth the paper it's written on as it isn't really enforcable. Very few courts are going to limit his visitation because of something like this unless she is in actual danger. Sometimes, if one spouse makes a huge deal over it, the other may actually benefit with more time because of percieved hate/control which usually is deemed not good for the child.
