I disagree. Luke has been trying to get Rory's attention ever since they met. Winking at him in the buff after his shower,...parading around naked al the time,...sitting on Rory on his bed,...Etc. Luke has done everything but come right out and say it.
Maybe I'm wrong but I have not really seen any indication that Luke is hot for Dave. We have pretty much established that Dave is 'unobtainable' because he is straight. But is Rory? And this latest development with Seth wanting to rescue Aaron upsetting Rory...hmmm
Chapter 31 should be interesting.