<human>: So my friend, and I belong to a group of 5 guys that have been best friends since high school. We are both now in our senior years in college. We are also the only two of us in our friend group that are here this summer. last week he told me he was having friends up from his school to visit for a few days and invited me along.

Now I would consider myself to not be the most social person in our friend group but I try to understand everyones point of view and not let the choices other people make bother me even though I often struggle with wondering why I don't have as many friends. Perhaps it has something to do with random chance over the last few years or maybe there is something I need to confront about myself. 

Either way me and him think similarly about life, girls, ambitions etc. But some of the social choices he makes bother me. He relies on other people to get in touch with him, if its more that two people talking he needs to be the head of the conversation, and he is hard to get in touch with and seems to take me for granted.

This time after he invited me I called him the day before to see if he was free and if we were still chilling over the next three days when his friends were up. His response was " Il get in touch with you." Understandable. However he hasn't, I understand if he wants to spend time with his friends, I understand if he wants to spend time with hes friends without me. What I fail to understand is why he thinks that he can not tell me this, and instead opt for leaving me hanging out to dry for the last 3 days without taking the miniscule amount of effort it would take to type a message saying something to the effect of "Hey i'm gunna be busy for the next few days, I know I said we were going to hang out but I cant." Or maybe even "sorry busy." So that I can stop checking my phone and waiting around.
Any thoughts on this has this happened to you? I'm kinda pissed and will definitely say something to him this time

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: One of best friends decided to leave me hanging because hes to inconsiderate to let me know hes either to busy or doesn't want me there either of which are okay I just want him to let me know!