<human>: Can you condense the text into a few key points?

When I was in college I met my gay bestie. It was his second round of school so he was ten years older than me, but we honestly got along so well. Eventually we moved in together and it was great! No complaints and we only stopped living together when he got a job out of state. 

Sometimes when we lived together we would throw wine parties and I remember he once asked me if him and his friends could have a couple of my adderall. I was taking them for ADHD while in school. I said sure and gave them to him.

Another party my whole bottle went missing, but he claimed it must have been someone at the party. It ended up costing me around $400 to replace.

About five years has gone by and throughout that time he'd become the friend who was always fixing someone. He likes being the hero. But it comes at the expense of his true friends who are there for him and often times he would choose deadbeats over true friends. One example is missing half my wedding to attend the funeral of a mom of a distant old high school friend. I wasn't mad but I noticed his choice. 

Anyways. My last straw recently was finding out that he was bragging to friends in a bar about how he would steal my adderall when we lived together and snort it with friends. Than they would put sugar back in the capsules so I wouldn't be any wiser. Also they laughed about how he could tell when I took one of the sugar pills. Who knows what else he did while we lived together. I really trusted him. 

i confronted him and to,d him to leave me alone and not talk to him for a while and have not heard a peep. I dont miss him much to be honest, I've gotten used to him not showing up in life lately. I heard from a friend he's ashamed but I don't care really. Am I immature for ending one of my greatest friendships over something that happened so long ago?
<bot>: Found out my "best friend" used to steal my drugs when we lived together in college, snort them with friends and replace the medication with sugar.