Not to mention that he left Dean alone in Purgatory to fend for himself and was later willing to kill Dean if Sam couldn't cure him of being a demon - And these are just his major mistakes. - I love Cas. But this is also a good perspective on him
This is the truth. And one of my favorite moments of the series, hands down. That Samy and Dean in the field scenes literally kills me every single time. Stabs me in the heart with a knife MADE of feels.