As I read it, Jon and Mandy used to be a couple. A couple that didn't survive the revelation.
I love how is relationship with Kaylie is completely the opposite of the one with Amanda. She met Supernova first and knows he lives a normal live somewhere. I love Kaylie's patience and willingness to wait for Jon to spill the beans in his time.

I still worry about what effect Kaylie's own secret might have on their relationship. They're just perfect for each other. *sniffles*

And RED glasses?! Yuck. No better disguise... (mine are blue goofy )