ideas for me



1 star didn't return to her home (probably goes to another dimension) and marco pass time trying to get her (with the scisors have the key for dimensional travel, but he didn't know where she goes)



2 star returns to her house and reuses return to the earth, even if marco gives the chance (and who after that reaction in the seasons finale)



3 star is captured by some villain (have a lot to elect someone) and marco goes to the rescue, probably thinking about her relationship with star