做你的灰太狼做你的红太狼
[zuò nĭ de huī tài láng zuò nĭ de hóng tài láng]
The cartoon character 'Gray Wolf' (a devoted wolf pursuing Red Wolf) from Pleasant Goat and Big Big Wolf is alluded here - wanting to play any role that will gain your affection, showing how much they want to commit fully in pursuit or care for the recipient of the message