Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I'm sort of new to reddit; this is my first post. I'll try to keep this short but will include as many relevent details as possible.  Apologies for the length and grammar mistakes.

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So I had a brother whom I was very close to. He was a year and a bit older than me. He went through a phase of hanging out with the 'wrong' crowd for a while but copped on very quickly after a short altercation with the police. He moved to a better school with better sports facilities; could have been proffessional athlete and was extremely popular. I then moved to the same school a year later. He was always very protective over me. He once tortured me for smoking weed and I haven't gone near the stuff since, one of the best things he did for me. He hated drugs and was influential in stopping many of his friends from trying stuff. He didn't have any problem with cigarettes and alcohol. He was a heavy drinker.

(He was 17 and I was 15)

After I followed him to this new school, i made lots of new friends. They all already knew my brother as he was very popular and was on the first football team, thus i was somewhat popular aswell. No one would have crossed me in school because of my brother's reputation etc. and thus I had it fairly easy. 

My brother commits suicide. He had severe clinical depression. I had no idea until after he had passed away. My parents tried their best to give him the care he needed. I handled it ok. Was in a state of shock for a long while after. I never mourned in front of others. At his funeral I was comforting my friends more than they were comforting me. 

At this time, a few of my friends and I formed into a group. The group started when we used to go to the 'lane' outside school for cigarettes. Went out every week together etc. This group quickly developed into the 'wrong' crowd sort of group. We became heavy drinkers and participated in anti-social behaviour. Our group would start fights at teenage discos against smaller people that wouldn't have stood a chance against us in a fight. I wasn't proud of this and thus wasn't that involved but not exempt from it. One of my friends 'Sam' was the worst for picking fights with people smaller than him. We had many disagreements over this but none that lasted more than a day.

They started doing drugs (ecstasy, MDMA and 'yokes'). I drew the line there and started arguing almost daily against this. These were my best friends and they didn't understand why I didn't want them to do drugs. I simply didn't want to go near the stuff for two reasons. 1) Out of respect to my deceased brother who hated all sorts of drugs, and 2) I was afraid I would not have been able to control myself, I was still grieving (6-8 months since my brother's death at this stage).

To keep myself from doing drugs I felt I had to keep it out of the group, as they kept talking about how good it was and I felt I wouldn't be able to handle the temptation for much longer. I fought hard on this and lost a lot of respect from the group for this. I was acting like their 'nanny' as they put it. Some of the guys in the group were sound and sympathetic about it more than others, but they were all doing it secretly and not telling me anything. One of my closest friends, Sam, was the worst when it came to lying about it. The morning after a night out we were talking, I asked him the question if he did drugs the night before, (he clearly did), and *he swore on my brother's grave he had not*. **\*This is why I still have the grudge today\*** I left the conversation at that as to avoid a fight. I confronted him about it two days later where Sam admitted he did do drugs but denied swearing on my brother's grave. 

I walked out of the group after that. At the time, they were all of my closest friends, and it was very tough for me to do that. I went from going out with them 6 days a week, to barely going out once a month (with another group i kind of knew). This was a very low point in my life. After being in that high school for two years, I moved back to my old high school (due to my attendance, failing grades and my brother's passing) and finished my last two years of high school there.

It was impossible to walk away from the group completely. We lived too close to each other and ended up at the same parties via our mutual friends. I made up with most of the group eventually but never returned to hanging out with them.  The group sort of dispersed after high school but remained friends. Despite that, I still had a grudge against Sam, and the grudge grew and grew as time went by. After high school, we both coincidently ended up in the same course in college. Over the space of 5 years or so, I had only spoken to him two or three times, despite seeing each other at least once every week or two. 

I never really 'hate' anyone and am very passive and never aggressive with people. I have always felt uncomfortable using the word hate. With Sam it was different. I hated him. Whenever he was around, even though i wouldn't be speaking to him, I would find myself getting an urge to go over to him and pick a fight with him. I never acted on it though. The main reason being is that we have many mutual friendships that I don't want to jeopardise. He is closer to many of them than I am. I would most likely come out looking like the bad guy if any confrontation were to happen.

He has tried only once to talk to me since we stopped talking in high school. He chose a really awkward time and I said to him to ask me again later that day. He didn't. I am taller and bigger than he is so I get a strong sense that he is scared of me and would avoid confrontation if it were to occur. He has clearly forgotten why it is that I have this grudge against him. Apparently he has matured since according to a mutual friend, but I have seen him act otherwise on snapchat stories, thus I have reservations about believing that. Maybe I haven't made it clear to him enough as to why I choose to ignore him. It is very obvious to the both of us. He knows I am doing it just as much as I do. I am afraid to talk to him in fear that I could end up lashing out at him. I feel ashamed that I might resort to violence. I never lash out at anyone but am afraid that it could be different with him.

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AITA? We are now both 21 years old. I know 5 years ago he was the asshole but now after such a long time, have I now become the villain for holding the grudge? Avoiding each other is impossible as we have many many mutual friends. Ignoring him has sort of worked until now but it doesn't help with the grudge. I am beginning to no longer enjoy nights out where he is around or in the same building. Am I going crazy or getting too obsessive about it or am i justified?

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being pissed off for something that happened 5 years ago