My husband of 28 yrs plays mind games w/me. He has been a flirt throughout our entire marriage, and a few years ago he started flirting w/men as well. I know he has cheated, I have no proof but I can tell by the way he behaves, he acts sneaky and wants no intimacy and says he needs time, because I ask too many questions.He is a hypersexual man so I know he must be cheating. I don't know what to do. He is a careless father to our 3 kids and a lousy husband, and just self absorbed. He won't be honest, he just Plays mind games. One day he implies he is gay and the next moment he denies it. I think he is slowly trying to tell me the truth, is this normal during midlife ?

So do you argue and fight when he plays games, and what types of games does he play lying record him saying it if you want to prove it.

Next so he is gay, being gay is not an excuse to cheat if that is his plan. Your option is to leave him, start demanding respect and him to do his work around the house and making his life a living... unless he does. Or shut up and just accept being walked all over

No, it is not midlife, he is a jerk.
I'm assuming your kids are grown, there is no reason to stay.
Leave his butt.