I think he is not ready to disturb his own life. So far you were away, he was enjoying the relation but once you are physically around his responsibility is going to increase and he may not be ready for that. Why he helped you to come to UAE is seems to be mystery, probably he might just wanted to please you but would have never thought seriously that this will work out. Now that it has worked out, against his expectation, he is running away because of above said reasons. You should continue going to UAE, not for him but if work and future scope is worth.