In Andy's games Bo Peep is perpetually at risk. Woody's saved her from railroad tracks, scorpion pits and death by monkeys. Outside of games, where the toys' tendency to panic is more a risk to them than bandits, she's the one person he doesn't feel he has to look after. Someone who doesn't need anything from him but still wants him around.
'I'm sorry,' he tells her when calming people down about a sleepover has lead to a date being cancelled.
'You can't help caring,' she says, smiling as she takes his hand. 'You know I love you for that.'