眼泪只为你流毛巾只给妳用
[yăn lèi zhĭ wéi nĭ liú máo jīn zhĭ jĭ năi yòng]
This indicates an exclusive attachment to a certain person; it expresses dedication where one’s emotions (like crying) and possessions (even something trivial like a towel) are solely meant for this specific individual.