I did it! But do I regret it? (I did not proof read this because I had to call someone so sorry if spelling is weird)

I have known a friend for a lot time, almost my whole life. But the past few years they just kept getting more and more toxic. They guilt trapped me into staying there friend, even going as far as to hurt themselves to make me come back or do something for them. They kept doing this over and over and over. We got in a fight after I found out they where talking about me behind there back to my close friends and my online friends because they knew I was logged out my discord due to me taking some time away from it after a friend passed. What they said about me was wrong and I was pissed as anyone would be, I ended up sending him a message back, reading it again it was a little mean but not as mean as his message to me. But he got rid of his text so it looked like it was just mine, screenshotted it, then called and texted all my friends saying "what happened" I was crying calling people saying what happened. We did not talk for a while. But he just kept trying to send me messages over and over and over. I finally let him back in and he went right back into guilt trapping me but some how it was worse. Two of my other friends cut him off as a friend and they have been guilt trapping my friends to. I never thought I could leave him because of our past. I mean I knew this person for almost 10 years. There smile from that long ago is in my mind and I just don't want to let go of the fragments of that past but they just keep getting worse with the guilt trapping. So I finally blocked him. I said nothing. I just did it. When I did a weight was lifted, but now I overthink about it. I don't want to leave but I don't want to go back. So was what I did wrong? I just don't know.