If you start to focus on all the great qualities of your partner and your relationship, and continue to feel grateful for it. The more of it you will get :) x
Well instead of making affirmation like "My husband does this" - What I meant was make affirmations like " I am so happy and grateful my husband is loving and caring to me" - That way you aren't making anyone do anything, you are simply feeling good vibes and gratefulness about the qualities you wish to develop in your relationship.
Also I don't think that it is wrong to do affirmations like "my relationship with my husband is loving and passionate" - its not really doing any damage to anyone, just changing the way you think I suppose! Like training your mind! x