ThatOneDilweed

I'm not lying. My friend and I were messing around on my server, and suddenly, he told me on discord he got kicked. I was confused cause he was still on the server. He told me he was in the minehut lobby, but I saw him in game still moving around. I was really scared. I asked them in chat who they were. They started counting down from 3. I WAS LITERALLY FREAKING OUT AND SO WAS MY FRIEND. When he said one, my friend left the discord call. He joined a minute later saying he lost wifi. We were really scared and after a while the person left. A bit later they /msg'ed me, "nice castle". The ONLY CASTLE I KNEW WAS ON MY OTHER SERVER. I went there really quick and they were LITERALLY IN THE SERVER. I banned him. He started messaging me, saying that he knew who I was, he even said my real name. I was about to message them back when a popup showed up saying that something happened to java, and then my discord crashed. I was trying to reopen it and it looked like my discord resetted, cause I was asked to log in and it showed me those new popups. I tried to message them again but it looks like they have left. I can't contact my friend now cause discord isn't working, and I'm really scared. I don't know how you can help but I think maybe since I didn't have whitelist on the server we were originally in, maybe someone got our IPs? I don't really know how it works. I really hope you guys don't think this is fake, and I really need help.