Dear Scooby, first of all, welcome to the forum! You and your husband will find a lot of help and comfort here. I felt a LOT of guilt when I stopped going to meetings, and I went to therapy which helped tremendously. My therapist has counseled several ex-JWs so she was familiar with the thought processes we have. Please tell your husband that he has done NOTHING wrong. He is facing a bunch of imperfect men, NOT spirit-appointed shepherds. That's the bull they hand out so you will obey them without question. Would Jesus have looked down on your husband because he is in shape? Would he have refused to allow him to be an apostle? He didn't work that way.
The Witnesses have degenerated into a control-freak organization with so many rules and regulations that no one could follow them, just like the Pharisees. If you two can leave the organization I think you will be happier, but if you still want to stay you both have to get grounded in your own minds what the truth is, and don't allow people to determine that for you.
And for heaven's sake, tell your husband not to stop working out! He'll outlive all of the pencil necked geeks, if that's any comfort!