My dad died. My friends were all halfway across the country. So I got into discord/videogames for a while to be with friends. My gf felt neglected. She started a fight, felt threatened (I've never laid a hand on anyone), and got a knife.
Here's the kicker: 1 week prior one of her best friends from middle school went to jail for stabbing her husband in a fight.
I was intentionally really calm for 3 days, and moved out in about 30 minutes.
Edit: There was about 2 weeks between the death and this incident. If it had been months, i could understand the anger. But I had hardly unpacked from the flight.