Phoebe didn't want him to release her because him being here meant that, for the first time, she was a little bit safer. She now had family here, someone that was actually hers, someone she knew from before this zombie apocalypse. She didn't feel so alone anymore.
At his words, she smiled a little, stepping back to push a stray dark strand back from her eyes. "Of course I'm keeping in practice...I'm still a witch and a Charmed one, even when I'm...I'm alone," she said. Looking up at Leo, Phoebe shook her head. "Yes, but it's also for others' use...though I'm the primary user, I guess. But there are a few other witches here and I've told them they can use it, too."