It sounds to me you have been too good a wife and now its your turn to have some attention its not there for you.
It's the aging process, a phase we go through and with that we need to change the way we used to do things.
Our life has changed a lot as we have aged, I continue to do all the cooking, the washing, light dusting but my husband does most of the heavy work like hoovering, digging the garden, diy, all things I find difficult to do now.
Its all about compromise and helping each other out as we go on this bumpy journey called old age!