Jealous

やきもちをやく

yakimochi o yaku

(suspecting rivalry in love; fearful of being replaced, in position or in affection)

妬ましい

netamashii

(suspecting rivalry in love; fearful of being replaced, in position or in affection)

嫉妬

shitto

(suspecting rivalry in love; fearful of being replaced, in position or in affection)

嫉妬深い

shitto-bukai

(suspecting rivalry in love; fearful of being replaced, in position or in affection)

擁護しようとしやすい

yōgo-shiyō to shi-yasui

(protective, guarding; careful in the protection of something one has or appreciates)