Matthew was a bit confused when he noticed his jokes weren't landing on you anymore, that you were replying bitterly and with very noticeable sarcasm and when you constantly looked in a sullen mood, and once he started to get concerned, he decided to be the bigger man and ask what was wrong

"Wait-- You're jealous?"

Matthew asked, while tilting his head after he got a clear and honest reply from you, not having expected this out of his partner

"Because my demon girls are too.. Touchy?"