Charlotte,
My wife takes care of herself, but she's not into sexy lingerie either.
If I even bought her something as a gift, it landed at the bottom of a drawer.
In more than 30 years of marriage, I think I could count on the fingers of one hand the instances when she put on something extra.
It's hard for me to resent her for this, such is her nature.
I'm not perfect either, unfortunately, because I secretly put on her clothes.