The worst kind of adc....

Was support Shen my last game and went 1/2/18. Got my adc 2 kills at a little over 5 min, he ended up going 16/6/6. Great stats right? You'd figure he'd be happy with my performance (especially with the performance of many crappy supports here in bronze) but no, he flamed the whole time and in post-match chat continued to say I sucked. He was toxic because I was half HP and left to recall, pinged to be careful 20 times, yet he stayed and got murdered by the Graves, Vayne, and Voli (whom I had pinged were coming thru river) and said "I'm fed we coulda had them". Later, my mid was getting dived so I ulted to him (there were no enemies around my adc) and we secured a kill and no deaths on our part, but Lucian decides to stay in lane with 3 ppl not showing on the map and push up to 2nd turret and get wrecked. Who does he blame? Definitely not himself. It was obviously my fault. Thanks placements for putting me in B 5, a hell that I get so many toxics and DCs its sickening.