The Sentinels Hahahahaha come on now guys lets be civil

"of course i told her about us! i told you what you said. i told her i liked both of you," he snapped, but without much force behind it. the shimmering gems of her eyes had lulled him, and guilt replaced his anger. "i'm mad but i'm not about to fuckin' lie about how much i like you," he growled, realizing too late that he had used the present tense rather than the past, which is what he had intended. you know, to be a dick. 

Cas' pride took another blow when she called him out on his virgin status. part of him wanted to bluster and claim that he totally wasnt, and that in fact he'd been inducted into the Non-Virgin Hall of Fame by a mysterious older she-wolf. but his energy for all the bullshit was gone.

sinking down to his haunches, Cas pondered how stupid the situation had gotten, his broken relationship with Behati, and now the shattered remains of whatever he and Aria might have had. he was angry, yes, but the logic was breaking through again -- he wanted to cry, he wanted to shout. he wanted to run away and never come back. had he known Behati was crouched in the shadows, watching, the boy very well might have died.