Wake up has a point. Whatever got you together should be enough to sustain you - to an extent.
Hubby and I got together at a metal concert. When we feel bored, stuck, distant or whatever we go away for a weekend and see a band we adore. All I have to say is "I think we're due for a concert." and even deciding who we should see and where brings us close again. By the time we get to going away we're all excited and mushy with each other again.
'People are never perfect but love can be. People waste time looking for the perfect lover rather than creating the perfect love' - Princess Leigh-Cheri from Still Life With Woodpecker.