These premade parties are giving me cancer

so i went into a game as gragas jg, our darius top and lucian thresh bot were premade. By my observation I see that our Ezreal mid is the best mechanic wise in team so i decided to focus ganking for him, while providing vision of enemy jg's bot side to protect my bot lane.

and this darius was extremely agressive, didnt ward at all and was killed many times over and over by enemy jungler. he keep spaming in chat saying i didnt help him and i did nothing and i am trash etc, but the truth is he kept chasing into enemy's red side jungle and ended up getting 3v1 and rekted.

and at the end game this lucian thresh bot lane who had been benefited from my wards and ganks reported me as well as this darius, dispite i saved them from numerous ganks. they reported me because they are premade with this darius, not because i did bad or offended anybody in chat or intentionally fed anybody, but because this darius was feeding and was pissed off and decided to blame the jg like all the bad players do.

sigh...this is making me feel very bad.