Accused of cheating?

So i was playing this rapid game against a 1568 rated player if i remember correctly while i was like 1458 or something... and i smoked him... he traded off 2 pieces for a rook and the game wasnt all that bad i only had a slight advantge with 2 minor pieces and rook for his  2 rooks... later he blundered a knight fork on his 2 rooks and resigned... he proceeds to type in the chat: good job cheating... youll never be on my level... this is pathetic.. these sore losers with ego issues accusing low rated players of cheating because of their own blunder is truly disgusting... have yall ever had such experiences? btw the accruacy was 86% for me and in the mid 60% for him... Bros a kramnik fan