Is AUTHOR wrong in the post ? POST : Let me start by saying we’re now on good terms now, but about 4 years ago he ghosted me just as we were starting college after leaving high school where we met, so we were about 16 (We've been friends for about 4 years at this point). I’m not a social person and I didn’t have many friends, so starting college knowing no one was scary, he was the only true friend I had.
It really hurt and upset me that he could just cut all contact with me, made me feel like I was unlikable. After he started ghosting me, I got really depressed and didn’t socialise with anyone, even going on anti-depressants to help keep me sane (I didn't want to exist for a brief period). I’ll admit I went crazy, became an arsehole and messaged him a lot to try and get him to speak to me. He did respond to somethings, but it was short, and he went straight back to ghosting after.
After a few months (felt like half a year, but I can’t be certain) I just went straight to his house to confront him directly, I just wanted my friend back and said something like “Let’s just forget everything which happened and play games”. It somewhat worked, and he started speaking to me a bit, more and more. Fast forward a few years and we’re back together, much better friends than before. We speak to each other for hours playing online games almost every time we are both at home.
One day (Like 9 months ago now) I asked him why he ghosted me those years back, and it turns out that it was because he was depressed because a guy in his college friend group called him weird and asked why he was even hanging out with them. So, he didn’t even ghost me because he didn’t like me, but because he was depressed about friends as well.
But it still bothers me every day. It really screwed me up, even after he stopped ghosting me. It really crushed my self-worth and social skills. Even now, I feel like he could just as easily drop contact with me and it wouldn’t affect him at all. He’s pretty much over it (or at least doesn’t show it anymore), as he found his group of people and started going to parties and drinking, I’m still depressed (much less so than before though) and anti-social.
He’s honestly a really good person and I love him to bits, so I haven’t said anything, or showed anything about still being mad, as I don’t want to cause a divide between us, and I can’t exactly suddenly appear to be mad about something which happened so long ago out of nowhere. (Recently he took a 30 minute bus journey to my house to drop off his controller I asked to borrow, during his 2 hour break from work when it was raining, without me even asking him to do so).
AITA for still being mad about it? His depression caused him to ignore me, which made me depressed. I can’t be mad at someone for not being social while being depressed, but it still upsets me. AITA for holding him partly responsible for my depression? AITA for still being mad at best friend who ghosted me 4 years ago?

In case anyone is wondering why I'm posting this now, after being mad for so long, he recently done something which triggered memories of how I felt before (He didn't do anything bad or wrong, just something which reminded me).
