@Littlemisslonley
I came late to the whole thread, and I have lots of sympathy for your past relationship troubles, and I can totally see why it's become a situation where you now overreact to things which affect you emotionally.
However, I think the suggestions people are making about therapy to unpick some of these reactions (&/or potentially you could also read personal development books/ attend non-violent communication training etc) might be helpful to you.
From the screenshots you posted and from your responses here, it feels like you might have more peace in your life if you are able to find a little more space between the trigger and the emotional response to it.
Because what I see is that where someone has disagreed with you in a way that you found less than ideal, you have then counter-attacked and escalated, sometimes also using inflammatory words (your friend, the pp you called "evil").
And when you apologised to your friend, you also kind of "over-apologised" for something which was quite small really, and kept apologising several more times after he'd said it was fine.
So to me it seems like your calibration is a bit off, which is totally understandable given past relationships.
There are many many people in the world with not great communication skills, and also many with not good emotional regulation skills and non-ideal ways of processing their emotions, so learning to differentiate between that kind of "people being off/aggy" and people who are genuinely abusive is important, because you'll come across lots of the former, and it's hard work to have the full emotional rollercoaster of reactions to each one.
Anxiety reducing techniques and meditation can help to give you a bit more of a pause between the trigger and your response, and in that pause you can take a breath and think:
"Am I sure that they meant it in a "bad"way?"
"Were they trying to offer something helpful, (or just cope with their own feelings) and expressed themself badly?"
You can then also think:
"Is my instinctive response going to help the situation here?"
"Is there a more skillful/de-escalating way I could respond which would be better for me?"
And I also want to make sure you have good boundaries and can keep yourself safe for future relationships, so it's likely a good thing to talk these through with a therapist, so you can learn to differentiate. There are plenty of charities for DV survivors who offer counselling, so maybe that might be a place to start?
Good luck.