I experienced the same thing which is probably one of the reasons that ended my marriage. I spent the last two years of my marriage sleeping on the sofa after I got back from my tours sleeping was never the same. its understandable i mean what wife wants a husband that can't sleep with her and is pushing her away at night. But its very heartbreaking for me cause I didn't want my marriage to end I loved my wife and still do very much but she deserves better than me its just the way it goes I guess.