I don't think you can solve anything, get further along in your relationship with your husband if you keep talking about it?

It sounds like both of you were having problems but that is in the past now and you should concentrate on making things work better now. He can't "fix" what he did wrong back there, can only keep assuring you like he has. You either want to accept that and move forward or decide you don't like it and you do something else. The May 20th decision should be for you and what you want to do as you can't control what he does, you can only decide you'll move forward with him or not?