Dude, don't tell her you are fine... You both know she's cheating on you... Don't tell her you are fine with it.. which is what she will think...
It's ok... just don't do that again...
Just ignore her... let her PURSUE you... let her take temperatures and freak out...
Don't tell her you're fine.. let her keep asking what's wrong.. I did the same to my wife too.. guess what?
It drove her crazy... you WANT them worried about you and wondering what's gonig on... why dismiss all their worry and let them off the hook... let her SQUIRM
Go watch teh video man, I can't impress upon you enough how much good stuff is in there.. that will do a lot of your support work with yoru family FOR YOU