Question

Okay, seriously, here is a question: What do/would Kyle and Kenny see in each other that would make them fall in love, or date, or want to be together? This is something I like to ask about basically all pairings I write. I'm not planning on writing this one, but it's getting talked about a lot, so I'm seriously wondering. I am not asking for what about them appeals to the fandom (although, sure, throw that in there). I specifically want to know why they're dating, or what they like about each other. Anyone?