I guess I don’t understand what you want from him.  Were you looking for him to feel YOUR pain or feel HIS pain?

People handle things very differently. Some don’t like to express to others what they’re going through, and it seems like you’re expecting that he should handle things the way you do…. but some prefer to deal with things on their own and in their own perspectives.

Also, if you know he’s on medications that are known to decrease empathy, why are you looking for empathy from him in particular? To me, that doesn’t make sense. You would need to vent to a different friend rather than him. I would also be careful about labeling people as narcissists. We all have a little bit of narcissism in us. It’s a trait that exists on sort of a sliding scale. Although some do have more than others, that word is getting thrown around an awful lot lately, and it’s important that we recognize the trait when it shows up in ourselves, as well. There are lots of different reasons why someone might not be as empathetic as you might expect them to be, including being incapable of it due to medication and because they just aren’t that into you.

At any rate, if you’re no longer around this guy, I wouldn’t worry about it. It sounds like it’s better for you two to just not be friends, so I would cut your losses and forget about him as best you can.