Wow, it definitely looks like he says "you look hot"! And I don't think he was referring to the weather!
Shipper is such a broad term--there are so many different kinds. I guess you'd have to lump me into the shipper category because I do enjoy their relationship/duo-ship/whatever you want to call it. However, for me it's all about the music. The Stevie/Lindsey dynamic is just the icing, if you will.
Do I think there is anything going on between them now? No way. Will they ever be together again? Not a chance in hell. But their relationship and the evolution of it is so fascinating to me. Just the fact that their actually civil toward each other now and can actually be friends (kind of?) and that Lindsey is talking about "dialogues" yet to be had and "chapters" yet to be written. I mean, how long were they in a romantic relationship? Five years? Yet they're both still writing songs to and about one another? Come on, guys, can't we just admit that their relationship is incredibly strange and fascinating without it having to be about them being in love? It doesn't have to be some taboo, forbidden subject, does it?
As long as we don't let the crazies who write fanfic or the people who think they're secretly married in, surely we'll be in the clear?