Smiley, this man has broken your trust of him. HE wants you to be 'up for it' and all that goes around you head is what he has done, time and time again, how you have been made the reason for this (when nothing could be further from the truth) and how the responsibility for the success or failure of this relationship has been placed on YOUR need for amnesia, and not his having caused the trouble in the first place.
Some women can live with infidelity, others can't.
You have given this a good shot, it has hurt you and further eroded the self confidence you did have, and now you are conflicted.
I can't think of anything to make me feel LESS amorous than what your H has done. Who in their right mind would want to shag someone who does that, does he not acknowledge that?
You are fighting your own instincts here, and that is never a good idea.
The phone image is too little too late. he could have done that on the way home. Where was his 'missing you' when he signed up for match.com? When was he thinking of you then?
You are not confused by this, you don't believe him, or believe IN him, and he is closing the stable door when the horse has long bolted and probably a burger by now.
You've had time alone. How did you feel when he wasn't there. If it's more peaceful, less anxious, then you know that is what your instincts/body is telling you.
He NEEDS counselling, to work out why he thinks sex = love. With a fucked up view of relationships like that, he'll never be happy, and more over, the longer you stay with him, neither will you.
You can do this. Your journey in life has to take the right path. The path he needs to tread is his own. Whether or not you walk together is beyond your control.