Highly, highly doubtful. It takes a lot to do a DDoS attack, like beyond being able to find your information, the amount of time needed would be enough to get the other person kicked.
Also another reason it was so suspicious is before our game began someone from the enemy team invited me to their party so I joined and they didn't say anything which was really creepy. Idk I'm just trying to make sense of things since nothing like this has ever happened