I can honestly say that I was in his position until about 3 months ago. It took me awhile to realize that I could not let myself feel guilty for breaking it off with someone that was making me feel depressed. I had to do what was best for me, but I still would look up his profile on facebook just to make sure he was doing okay without me. I would also lie to my current boyfriend about looking up my exes profile on facebook, mainly because I didn't want him to get the wrong idea. He will realize that he cannot be feeling guilty for doing what was best. It just takes time.