Dinah nodded her understanding as to why Zatanna would have gotten involved. It wasn't a good situation, and it sounded like things had been rushed too much. Her expression was grim as she looked down at Sam's unconscious figure. She nodded slightly, though she didn't expect the mystic to be looking since she was focused on the younger Winchester.
"I'll talk to him. Thank you, Zee."
She stepped outside the tent and gave Cas a small apologetic grimace before she approached Dean again. She came close enough so that she could talk to him quietly again.
"They're helping Sam at his request. I know you're not happy about it, but it sounds like he went to John and asked for help and John agreed. Whatever you might think, they're doing what they can to help him through this."
With that said, she let out a soft sigh and then relayed the conditions.
"Zatanna says that you can come in. But you can't touch Sam, and you need to get out whenever they say that you need to leave. Can you accept those terms?"