Friendships blew up into drama. Did I handle this okay?

My boyfriend and I have been together almost 3 years. Over 2 years ago, we met a couple and became “couple friends”. They are our age (early 20s).

It was fun in the beginning. I was in college and my boyfriend was too but lived at home. They were living with the girl’s father. We used to drink a lot, go out together, etc. They confided a lot in us. We talked a lot. It was fun.

About a year ago, when my boyfriend and I got jobs and moved out, problems started. We grew up and no longer wanted to binge drink. They tried to pressure us. We just grew bored of them but still maintained a friendship. Over time, I lost respect for them as people and secretly laughed at them or was disgusted with them in my head. They were so negative and the girl kept getting fired from every single job and spent 1000s on ugly tattoos and piercings, all while her cat suffered with medical issues.

They turned really selfish too and expected a lot from us but never wanted to give back to us.

The real cherry on top was that neither of them was supportive of me getting weight loss surgery this fall. Even though the guy is bigger than me and has chest pain often. I never understood that.

This weekend, after ignoring us for a while, the guy blew up at my boyfriend because my boyfriend posted something on FB about a celebrity that he didn’t agree with. He began to berate him. I stood up for my boyfriend, politely. I got berated.

I decided I didn’t want this immature sack of blubber in my life anymore. After talking with my boyfriend, I sent the guy (and girl) I message that I had been thinking for a while and felt that we just clashed too much as people and that I wanted to part ways because I was tired of the arguing too. I wished them the best and ended with “peace”. I said it just like that.

Oh my God, both my boyfriend and I have been inundated with abusive messages. Despite blocking them. They sent messages to our phones too. Had to block them on there.

I’m pretty sickened by the constant steam of obscenities, when I never said anything to them. My boyfriend didn’t either.

They live 30 min away but our mailbox was vandalized this weekend. Someone wrote obscenities on it. I’ve lived here for a year and I’ve never had this happen. I’m pretty sure it’s them.

I’m not sure what I did to deserve this sort of mentally ill wrath.

Blocked on FB. Blocked on our phones. I don’t know what else to do.