Blame the Support
So, one of my friend ADCs a lot, and I support them very often. Whenever I do, I always do whatever I can to keep him alive (Healing, Stunning, other CCing) And I usually end up helping. Sadly, said friend isn't necessarily the best at the game, and since they usually ADC, they usually blame the support for their mistakes. In some cases it is the support's fault (Running away when the ADC is going in, etc).
But yeah, I was hoping that there are other people with this problem, because it gets annoying at times. Supporting as fun, but when you don't have a good ADC, then it's pretty much over. All you can really do is poke and hope for a kill. Anywho, comment below if you have this problem too!