Asolutely - I really believe this. I would perhaps change the word 'deserve' to 'create' (as sophable said a lot earlier I believe)
I take 'thinking yourself into a state of grace' as accepting what the other gives without wanting/wishing it were something else. Of course the flip side of that is trying to give the other person what they want.
All this pre-supposes you have two people who are trying to do the same thing. In that way you have a virtuous circle of accepting what is given in the true belief that the other person is doing the best they can to give you what you want/need. If you believe this and trust the other person 'tit for tat' in it's worst sense is unecessary.
If we come at it from the view that everything we give needs to be got back in some way - we can never reach this point - it's not possible.
All this of course requires goodwill on both parts and good communication. You can't even start to work out what someone might need/want without communicating with them about it. Obviously you also need enormous trust in each other to do this too.
Pretty difficult to do most of the time but fantastic if you can manage it even partially some of the time 
Obviously there are some marriages/relationships (probably loads) where this is a ridiculous pipe dream - usually because one or both of the partners does not wish to or is unable to do the work involved or because the trust needed has been irrevocably broken.