It started this last weekend when she told me "really I have been thinking about how I need to dress up for you more. I shouldn't stop trying so hard to impress you just because I got you." Now she wears more makeup and in different ways, new and better clothing (she's even been buying some new dresses and the like), she's more interested in sex and initiating it, a lot more affectionate with her words, and I'm wondering what might have caused this? I'd say infidelity but the interest in sex throws me off.