Sounds like he has a problem, I dont think its with you. Try to get him to talk before you switch on the TV in the evening, find out what the problem is. I think its more deep seated than just not talking to you. It might just be his nature. If it was you, I think he would have told you . He obviously enjoys your company or he wouldn't be with you, but for some reason can't show you affection. Nice to hear of someone who actually likes animals instead of abusing them .. there is a heart in there somewhere.