I have heard a few things like changing your home around, put things in pairs, place hearts around, put a pillow on one side of your bed so it acts as if its your partners spot. 
I know it sounds crazy but you can even have conversations with him when you are on your own, as if he is there with you. Some people wouldn't do this but apparently its effective!
Imagine yourself in the mornings when he is waking up with you and at night before you go to sleep imagine him with you. 
Be the person you want to be and everything will fall into place, become a wife, do what a wife would do and it should work Hope this helps!! xxx