League ruins friendships, makes me bitter

Anyone else find that it's healthier to just play solo? I've played this game with many folks, and it's such a high stress environment that I find it always leads to arguments and raised voices after games, win or lose.

Anyone have any techniques to help deal with this? At this point I just expect it. All it takes is something unlucky to happen and the rage snowballs on both sides.

Every game has a loser who deserved to win, and a winner who deserved to lose. There are even times I mute all and am in good spirits only to find my team was arguing with one another the entire game