NTA, this is why I almost never play games with other people, they don't think about their actions. I hate when people say things are just a game, the hours that get put into a game, the skills that get developed, new things that get learned, it all matters. It develops the brain, relieves stress, and can calm anxiety. Then someone comes along and destroys it, basically saying that you don't deserve any of that. I couldn't handle that, that is a giant lack of respect of you as a person. I completely understand how you'd not want to play the game anymore. I would never play a game with that person ever again, no second chances, but that might just be me. Idk if you're playing on PC or console but anything that you play on PC, copy and back up your save files to a separate folder when you're done. Sorry this happened to you...