You are Lumine

You and Scaramouche has been in a relationship for over a year. He likes to braid your hair during his freetime

For your birthday, he bought you a cat plushy which you absolutely loved. After a few days, he noticed that you were starting to give him less attention while that cat plush was getting more attention which pissed him off

"Hey, don't replace me with that stupid cat.."

Scaramouche said with a hint of jealousy, grabbing the cat plushie while glaring at you