i must talk to some one about this

i just played a blind pick game with a panth player at the champ select we all selected our roles except him he locked at panth i told him to take smite becuase we had no jng and he didnt answer

Game started. he followed me at mid i was OK with that but his farming and playstyle were very bad at level 4 he started to randomly roam and died in every lane when i tried to ask in chat but no one answered they were all premades talking a language that i dont understand when the game ended i went to see panth profile and here it is ( http://prnt.sc/c9ux93 )

he spammed Bot games till he reached level 30 he knows nothing about the game he was playing very bad and i was really upset because i played with him.

why did this happen to me ???