"I'll let you know what I find. If there isn't an option you feel would work, then we'll do what's best for Vesta."

Lark knows from the other end of the leash what a pet can do for a person who's trying to believe the world won't shake them off their feet again. As badly as he wants B to stay near (it is not as much for Steve as he is letting on, though Lark himself hasn't fully realized it yet), he won't do anything to jeopardize what security B has found with his cat.