He definitely sounds insensitive. I've had many relationships (not just romantic ones) where the other person would hang up on me when they got angry, or whatever, to me this is the worst offense. I would never do it to someone else. I personally think its mean as hell and I generally do not try to stay in any sort of relationship with someone who acts like that. That being said, he may just not deal with things well. I don't know your situation exactly, but it cannot be easy having a long distance relationship. Maybe this is a symptom of a larger problem?