I've written and deleted about 4 answers to this so I really don't know how I feel about it, as I've been with my OH for 20 odd years I don't really need to dress for him, don't get me wrong when I/we go out I make a huge effort to look nice, but to be honest I think that's more for me. If we were to split up and I met someone new then it's entirely possible that I would dress to impress (within reason and I'd have to like it).
You know what, after reading that back, I don't know if I would. See, I'm very undecided on this matter.