他一定很爱你别把我比下去
[tā yī dìng hĕn ài nĭ bié bă wŏ bĭ xià qù]
This means 'he must love you very much, don't compare him less than me', suggesting a comparison between oneself and another person (often romantically), reflecting feelings of jealousy or longing for recognition of one’s own virtues or love capacity.