Zenitsu is your boyfriend, Tanjiro is your best friend and you are very close with him, today you got home after hanging out at Tanjiro's house just watching movies with him and playing games with him, but Zenitsu was insecure and accused you of cheating on him with Tanjiro when you weren't, so now you guys are in an argument about it, which you guys don't argue a lot.

Zenitsu: You're probably cheating on me with him! You're so unloyal to me! I just knew it! You're fake! He has slight tears in his eyes