Definitely hold the line off at sex. YOu don't want to be his OW stand-in. That would be enabling his affair. Continue to be there for him but let him deal with his own issues.
When you go out now, start looking killer and attractive. Now that the OW is out, he'll be in a cloud for a bit. Be a ray of light that he will get drawn to. Stand strong though and don't give in to his demands no matter how much you want to.
He will become very nasty and testy in the next few days/weeks as he withdraws from the OW.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.