Even more issues with the community! :D

Today, in my two games of Team Builder, i was matched with a and a Morgana. They were the same person, but they were abusive. Dont ask me why i went into a second game with them, i was'nt thinking. BUt my first game, i was verbally abused for getting hooked by a thresh and dying. I ended up getting the ace that won. SO they invited me again, and i joined. Then, the Morgana support went mid, and left me alone vs a Blitzcrank and Ezreal. Needless to say, i was killed multiple times. Then, the Warwick and Morgana started to call me bad, and feeding. It was not my fault. What has to be done to stop these people from playing PvP? What gives them the right to even say wha they were saying? It's getting to be too much, and it's starting to make me lose interest in League.