Will he eventually get found out?
Most Helpful Girl
He has sex with her. Most gay guys I know get laid (by women) easier than straight guys I know
Usually, though if you're worried about dating someone for a "cover" then if you're straight up with them they'll be cool with it.
But whatever you do DO NOT LIE to the girl. If you want to have a girlfriend as your cover and be on the DL then tell her if she's a friend she'll usually be ok with it, but if she finds you out she's going to hate you for lying to her.
I agree with everydaynormalguy though if you're gay I think you should just come out.0