I won't lie I thought u were stoned or something. I think you just get games like that sometimes.
I felt so bad afterwards, you lost games because of me. You should've left earlier.
Very likely to be due to connection. When you're on your own, it'll make sure you get a game with the best possible connection, whereas it has to compromise a bit if you're with others.
Think this might be true, we played 3 or 4 games where the other team was lagging so badly. In one of them one of the players melee killed my from very far away. I was even behind the wall.