I think he’s lost interest in you, and because of his commitments where he is, is not as interested as you are in maintaining a long distance connection. When he said that if you don’t like things you can end it — that was his way of saying he’s not willing to work on the relationship. He’s focused on what’s happening in his life there. If you call and text him, you’ll lose sight of how interested he is in you — or uninterested he is in you. Let him lead, and you’ll avoid confusion. I know it’s risky because you may learn he isn’t interested enough to stay in contact, but if that’s truly how he feels, it’s way better to learn that sooner than later and not waste your time. However… if you back off, he may take the lead and that will make you happy. So give the relationship a chance to define itself, by not texting and calling and seeing if he does. 😉
