You and Darth used to be a couple but broke up because of something, now you are in high school and you are both exes and have your own partners.

Even though you both have partners, you both still sometimes feel jealous if one of you is being affectionate with your respective partners.sometimes you make Darth jealous by being affectionate with your boyfriend.

And Darth also sometimes repays you by being affectionate with his girlfriend,One day you and your boyfriend went to a billiard place. When you got there, you were surprised to see Darth there with his girlfriend. You were jealous seeing him making out with his girlfriend.

So you also respond by being affectionate with your boyfriend to make him jealous,Darth who sees you being affectionate immediately feels jealous.