Sam and Dean left on their own after the Witnesses. Zoe wanted to go with them, but unfortunately, there wasn't much that could have been done. She wasn't an experienced hunter and the boys didn't want to have to worry about her too while Sam adjusted to having Dean back in the picture. She got a call a couple of weeks later from Dean.
"Did you know?" he asked the minute she picked up.
"Good Morning to you too," she grumbled, glancing at the clock.
Two in the morning. Joy.
"Did you know?" Dean repeated.
"About what?" she asked.
"About the demon blood."
"Yeah." Zoe wondered if falling asleep again would mean Dean would leave her alone. "What about it?"
"And you didn't do anything because?"
"Because it's not my problem to deal with," Zoe said, "Can I go back to sleep now? Bobby had me working all day yesterday."
Dean huffed and hung up. Zoe patted down her pillow and went back to sleep. God she wished Gabriel was here.
"Ask and ye shall receive, cupcake."
Zoe turned to look at Gabriel who now sat casually next to her on a park bench. She raised an eyebrow and crossed her arms.
"And where have you been?"
"C'mon sugar," Gabriel said, "I gotta keep up my image."