MSN may be hacked?

So I woke up this morning to a surprise: apparently I was talking to Sean Donk from BBF 2 hours before I woke up. He spammed me with like 200 messages, I told him to stfu multiple times, called him by his actual name (Jordan) as well as many other names I cannot say here lol, told him to hang himself, he asked if I was Sam or Connor, and then I asked if he was playing GTA. I just talked to him and he said he accidentally added me to a conversation with a bunch of his friends, so maybe the reason it said I was talking was because my phone's IM app didn't know how to put in multiple people talking in a conversation? I don't know.

Do you think I was hacked? Did anyone else get messages from me or get this random sh1t from him? I changed my password anyways but now I'm all paranoid