Cas shook his head. He didn't really know what an intervention was but he could guess. It was pretty much what Dean and Jo had done to him. And, in his case, it had worked. Could they have the same success with Jo?
He held her other hand firmly. "Dean is right. We are worried. I don't wanna see you in the place I just left." He had left, right? "We both know you have some things that are really getting to you. I'm not saying you have to talk about them but I think it could help you. I think leaving on us is better than leaning on other things. Unlike the drugs and the booze we care about why you're drinking. We love you, Jo. You trust us, right?"
Trust. He didn't want to force but he needed her to know, needed to be clear. It was a slim balance. He already hoped he hadn't gone too far.