I dedicated myself to raising my children. I was married to my first husband for 15 years. Yes, I got fat! Yes, I put my career on the back burner for several years to concentrate on my children. No, I never drove a fancy car or wore even one piece of designer clothing. But after my first husband left I remarried an absolutely WONDERFUL guy.
Keep your own interests and know how to support yourself even if you choose not to do that for a few years. But you do NOT need shallow shit like a perfect model body or Chanel sunglasses or whatever. The right guy isn't into that anyway.