The fact that sexual interest waned "overnight" coupled with his being "scarred" by your mistrust in him as evidenced by your suspicion that he was having an affair (over defensive?) seems to suggest an affair to me. If not an actual physical affair, perhaps an emotional one.
I know other people will chime in here soon (a lot of people log on at night, because there is NOTHING going on in their bedrooms ) so just be patient, check in daily, and try to help others if you can.
) so just be patient, check in daily, and try to help others if you can.
