He should probably see his MD or maybe even a therapist. It took my husband a while but he did get his groove back after six months post treatment. He said fear held him back from trying. We went on vacation and that seemed to do the trick. I hope this is not too much information (my husband would probaly be upset if he knew I was posting this, so let's keep it our little secret.) This is a huge part of recovery for the survior and their partner and should be discussed Good luck. LM