I love how much they needle each other. It's fun and it's playful. It adds humor to an otherwise VERY dramatic show. And the writers could run with that w/o making it stupid ala L&C. Clark is only just starting to realize Lois has his number ("There are times when I think you don't know me at all, and then other times when you know me better than anybody.") That's good. They're going in the right direction there. Clark's attraction for Lois should grow, even though she will continue to noodle him for being the goofball (key label) farmboy that he is.
G&M have taken a LOT of heat for bringing Lois onto the show so early, but I think it makes a HELL of a lot more sense for Clark to slowly develop an attraction and appreciation for who Lois Lane actually is, instead of falling for her the first time he sees her at the Daily Planet ala S:TM. That was just .... SILLY!
There's a LOT more to these two (three? LOL) than just a visual attraction...