AITA?
A little backstory first: I (17M) broke up with my ex of around 9 months about 2 weeks ago my feelings had been going away slowly for a while but I still cared about her a great deal and wanted her to be happy so I let her down as easily as I possibly could. 

A week later she went to a sports game with a new guy (John) and I’m still in high school so obviously to everyone that was there(I wasn’t) that was a lot of drama and they were blowing up my phone about it and who he was. I didn’t care that she had moved on I was happy for her but one of my oldest friends (grace) knew the guy and she told me he had herpes (this was a joke but I didn’t realize this until she told me later) since I thought he had herpes I texted my ex’s best friend and told her exactly what my friend had told me because I still cared a great deal about my ex and didn’t want her to get a disease that I knew the guy had beforehand and could’ve let her know. 

Around 30 minutes later my friend grace told me that John had texted her telling her off Bc she told me He had herpes and that’s when grace told me it was just a joke so I went and apologized to my ex to John and to my ex’s best friend about the misunderstanding. They all go on to make me out to be a shitty dude and just jealous and make a huge deal over this misunderstanding that lasts for days and josh threatens to beat my face in.

Fast forward a week and I’m eating with a couple of friends and my ex, josh and grace come walking by and josh just stares at me then walks away and a little later grace texts me and said he wanted to fight you he has a crowbar in the back of his truck. I guess the only reason he didn’t is because I was with other people. So obviously I’m extremely pissed off from this, I was close to getting my head bashed in with a crowbar over some small childish shit. Josh would’ve done it too I was told he has gotten in fights with crowbars before.

I texted my ex and went off I was and still am angrier than I ever have been in my entire life. she blocked me and I’m glad she did because I probably wouldn’t of been able to stop myself from going off on her since she was defending him for wanting to bash my head in with a crowbar. She’s now calling me a peice of shit and that it’s all my fault. So AITA?