陪伴是最长情的告白吃醋是最直接的表白
[péi bàn shì zuì zhăng qíng de gào bái chī cù shì zuì zhí jiē de biăo bái]
Translated to 'Companionship is the longest declaration of love; Jealousy is the most direct declaration.' It expresses a romantic belief: long-term support and presence are the strongest proof of affection towards someone; similarly, getting jealous over a loved one indicates an undeniable confession of feelings.