I don't think we should go. Maybe he won't be happy when he gets there tired by long-distance bus. He didn't tell you. Maybe he thought of this. For your sake, maybe he didn't intend to invite you, but he also has his own ideas. Usually when you go, he will try to come to your future wedding. You are too far away, which may not be a pleasant thing. If you are in a heavy mood, you can ask about the situation after other roommates come back, find out the bottom, make plans, or make a phone call when necessary. I think he can understand that you have been in the same room for so long. Good luck!