This does not apply to me, unless her nose doesn't work XD
But for serious, I like to give the benefit of the doubt. Maybe the reason she was interested at first isn't a good one, but if she seems to be my type later on, I wouldn't want to waste that opportunity. There's plenty of time to call it off.
Besides, what if I was dressed like a hobo the whole time in a strange ruse to make people think I was poor but she saw through my disguise?