MrsD: Sounds like a good day for you. I'll be honest with you, my S11 is my world, but I don't call him every night to tell him goodnight and the biggest reason is that to do so i have to call my W. Maybe thats awful of me, but i've told him to call me anytime and since we talk regularly I don't really see a need to call him each and every night...mind you he's here with me at least 1/2 of the time anyway but still don't read too much into him not calling to say goodnight, it really could mean nothing.
And keep working hard on you, i've never been in your exact situation, but like Bond said, i've been on the wrong side of being cheated on and it takes time to trust anyone at all, but especially the one who did it. And as much as you say the thing with the trainer was "only" chatting, I can tell you that an EA can hurt just as bad or worse than the physical part. Its going to take some time for him to come around to trusting you, im dealing with the exact same thing, not because I cheated, but because I was an angry, controlling person who was insecure and jealous....heck that might be worse than cheating im not sure, but my point is its ALOT to overcome in the others mind that you can be trusted whatever kind of transgression you've had.
Have you read any of the posts....can't remember who it is, but its titled study in feral cats I think. Your gonna have to give this time and let him see more and more that you can be trusted. Hope im not sounding harsh because believe me everything I just wrote to you is written for me as well. Patience is hard, doing nothing is hard, but i've always been told that God never told us it would be easy, He told us that it would be worth it. I really think it fits in this situation for sure, it may not be easy, but the personal growth in this is going to be worth it, and hopefully there are other benefits as well.