No. She is your WIFE. You shouldn't include other people into your bed.....that is WHY you got married.
your wife if guy
I would imagine so. My girlfriend is not bisexual. I wish she was actually. If she was bisexual I would a much stronger interest in marrying her.
If your wife is cheating on you, regardless of sexual orientation, the first thing you need to do is talk to her, evaluate your marriage, and maybe consider counseling.
First of all, you should not even have a girlfriend when you have a wife. That is call cheating.
Go where your heart goes
Then he should take his girlfriend.
First of all, sexual orientation is unchangeable. If a man is bisexual, then he will always be bisexual. Secondly, a bisexual man is by definition fully capable of loving his wife and being attracted to her. But if the man is actually gay, then that is a different matter altogether.
...Probably. But he does have a wife and kids....
He had a girlfriend.
Girlfriend
Yes, but you should not marry someone you don't want to be with.
I don't see why not, unless your wife doesn't want your girlfriend in the house then it's fine, but why have a girlfriend and a wife?