It isn't Jessie's first time at the rodeo. I think she has studied all the seasons of Love Island UK and figured out the winning formula. Attach yourself to a popular male that the public is rooting for (a bit of an underdog). Be devoted to him. There needs to be drama though (otherwise no air time) - maximise potential drama (off again, on again) but in such a manner you remain hero of the story (devoted, betrayed, unsure, hopeful, devoted).
Be a girls girl and promote strong, powerful, independent thinker vibe. Insert yourself into every storyline if possible (to get airtime).
In short; Girl meets boy, they are besotted, boy betrays girl, girl devastated, can she's trust him ever again?, brave baby steps, couple reunite, supportive to everyone, redemption arc complete, win show.