The fact that while just being a background character she had more deep presence than star.
You make a shitty MC and make her appear in all your episodes, she is disgusting in half of them, but since she is MC we have to like her...
You put a background character and/or plot device, that is really cute, patient, calm and supportive who claims Marco and fucks him in front of her. Based
The episodes where Jackie and Marco are together and progress in their lovely relationship are by far more watched than the whole starco moments
This is Nefcy and crew's fault, she decided to give a wholesome Jarco ship, and fuck up starco with a cheating forced relationship that "was pure love at first sight", no one believed that bullshit.