心甜 [－－]

Jyutping sam1 tim4
Pinyin xīn tián

Definitions (CC-CANTO)

to feel happy and blessed, especially from the affectionate actions of others

Definitions (粵典–words.hk)

形容詞
痛快，滿意
satisfied, feeling great

Definitions (Kaifangcidian)

心中痛快
心裡舒暢 – 心里舒畅