Usami-san wa Kamawaretai! - Vol. 1 Ch. 3 - I'm Not Going To Lose Out to Others!

[MangaDex]

 

[Retarded_Wizard]

These lewd young'uns...

 

[Tatherwood]

Now now, lady, if you can touch him it's only fair that he touches you back.

 

[HGSparda]

They're not geh, no reason to be jelly girl

 

[Juggernautbob]

They're not geh, no reason to be jelly girl

She learned to be jealous of anyone who goes near her man, just like Kyoko Hori from horimiya.