I think I've figured out a reason the fans reject Aisha and Nex as a couple. Unlike the other couples, they haven't had many romantic scenes. They've never said, "I love you." They've never kissed. (They were about to on their date, but Squonk interrupted them.) Their romance feels weak.

I blame Nickbow. In seasons 1-4, the couples were more affectionate with each other. We often saw them kissing, cuddling, hugging, etc. It felt more appropriate for their age group.

But from season five onward, the romance has been toned down. There's not much cuddling anymore and almost no kissing. When Aisha...