Did I treat them horribly or did every1 contributed?

Recently, I've just lost maybe 3 people out of a 6 person friend group and been officially kicked out of that said friend group. And now, I'm slowly learnt that the three of me might hv hated me 4 a long time alrd. But I'm not completely sure it's tht's even true or not. I'll address them as P1, P2, P3. Now, I was the closest to P1, he was my bsf. We'd always tlk and make jokes w/ each other. It's the kind of friendship where ppl would think u were dating or saying tht u only flw each other around. But he gradually distance off from me recently and never said I word as everytime I confronted him, I'll say it's ok or say nothing. Then I learnt it's bc I teased him from P3. I wasn't rlly the best w/ P2, at most I'd see him as a friend. He would constantly hurt ppl and tease ppl as a love language. Whn he was mad, it's likely you'll get injured. He wld always tease but, you weren't allowed to return the favour. So, when I did, he wrote me into his, so-called "fake diary" designed to lure me to read it. I only read it bc I knew it was about me, and I genuinely do own up to the fact I invaded personal space. Just tht, I got rlly mad n wrote an extremely harsh note directed to him, and whn I apologised a few days ltr, he finally ignored me. P3 says I treated her horribly, especially at her lowest, citing my bragging, competitiveness, dry-txting arguments, temper, and wnting to win arguments. I admit I hv these flaws, but I feel her description is disproportionate. My bragging was a joke 4 lols n I stopped doing it with her 3–4 months ago. I also stayed by her side through 2 times of her life, which she later admitted. Our arguments became a cycle: I'd get harsh/competitive, while I felt she dismissed my feelings as jokes/excuses and brought up old issues. I know I hurt her, but I think we both contributed. I just wanna know, am I a horrible person, treated them genuinely horribly, or did every1 hv problems/made mistakes. I need an external opinion for this ngl