Well, I'll tell you a story that happened to me recently.
I was playing support bot, and my adc started raging. Like, I know, it happens. Usually I mute, but I was in a bad mood. And he was telling me to leave the lane.
So, I said "okay." And left the lane.
Needless to say, I wasn't really able to help anyone else, whether because of bad luck or not, I don't know, my leaving didn't help us win.We ended up losing the game, and the adc was still angry. After it was over, I felt bad.
I've realized since that I messed up. I contributed to the toxicity. My team didn't blame me, exactly, though one did say to report both of us. And really, it's understandable. I wasn't TRYING to troll, I was trying to get away from the angry rager, but it only made the situation worse.
This experience has taught me that I should just relax and play my game. Mute people when they become toxic, and just do your best, until the end, trying to remain calm.