I want to see Marco slowly and sadly realize that whatever feelings he had for Jackie were based on hopeful thinking, Jackie really isn't the one for him
I want to see Marco realize that Jackie's interests and hobbies don't align much with him. I want to watch him cry because hes realized he's pushed his good friend Star away during the relationship, and that 'good friend' isn't enough for him anymore, its not what he wants
I want to watch Marco give a happy, tearful confession of his feelings as Star sheds happy tears.
I want to see a grown Marco, now King, sitting on the throne with Star, laughing and looking at a picture of them both, happy that they went down this path