They definitely have to meet again when she's normal Betty. She'll be a lot less forward, but since he and her Hulk self have gotten along so well, she'll be much more receptive than she'd be if she was just meeting him for the first time. In either incarnation, she likes his wacky sense of humor.

Absolutely! I'm really enjoying it too. I think Castiel's going to benefit from having someone else around to take charge if things go sideways.