These do not have to be expensive whatsoever. Step back in time and start getting dressed up more on the weekends, invite your mate to sit with you on the couch, dance together in your living room to some music, or take a walk, hand in hand. If you find that on the weekend things are lopsided, help your mate out. Include the morning newspaper as an added bonus.
Think of it like choosing a car.
If one of you has had a dream of writing a screenplay, make that your goal and take that on together. Being at a party or anywhere around family or friends and breaking into an argument is a great way to break down a relationship. If you are both the athletic type, enter yourselves into some type of physical competition. Even if you do not see them often, having a good connection with your mates family will make life for everyone much better all the way around.
The truth is, both of you will have to work on this.