Sit, then talk
Spend some time with your with wife in a very particular way. Go where you can be alone, and sit for several minutes (try 5) not talking or doing anything (hold hands or sit arm in arm, but just sit – still and quiet).
Think about her and what she means to you. Think about all she does that blesses you, and what you would like to be different. Think about what you do “for her” and what she would like you to do that you don’t do. Ask her to think about the same things.