>>88509105Premise of the show is that she went to live with an earth student (Marco) in some interdimensional exchange program
There have been progressively bigger and bigger hints that she's got a crush on Marco, and it was all but outright confirmed a while back, basically she had a crush but wasn't aware of it herself
Latest episode (mid-season finale) had Marco going out with the girl HE'S had a crush on for 10 years and the episode was FULL of delicious moments of Star being completely jealous
By the end of the episode it just got sad though, like she was clearly deeply hurt by it all
