I would like to help you with your question. I can understand how hurt you feel as you have such limited time with him. Please don't take this as he is trying to hurt you or make excuses not to be with you. This may just be his way of easing into spending time with you...or a genuine desire to be with a good friend.
If you show him any sense that you are upset...it is likely to create a rift between you...and that's not what you want.
No... I read your question. Everything is just fine on my end with your posting.
Would you tell me how old he is?
Maybe he is being selfish...but would it do any good to point that out?
That's my point...it could cause more harm then good to bring this up.
Instead, I would focus on enjoying the time you will have together. Staying in the moment...delighting it what is present versus feeling about what is missing...
Does this make sense to you?
Yes..it's painful and even disrespectful that he would take off nearly the moment he gets there...but...let it lie.
Absolutely...your feelings are reasonable.
Most everyone would feel the same...it's terribly disappointing and as a mature adult he ought to be able to make better choices.
So..hard as it is...let this disappointment go...