I’m sure a lot of it has to do with the fact that they are both in touring bands, aren’t home very often, and aren;t home at the same times. If Chad is going to be off on tour, Hayley would probably rather be in Franklin than anywhere else. But when they are both home from touring (which is not very often, really) they do spend time together. Hayley definitely stays with him in LA a lot, I don’t know if he ever stays in TN.