Relationships are not always the easiest thing to navigate, but sometimes we make them harder than they need to be. Sometimes the coordinates to happiness are right there in the words and actions of our significant other; all we need to do is pay attention to the details.
Humans are creatures of routine which is a survival mechanism we learned many, many years ago. Routine continues to protect us today, but does not play well in a romantic relationship as things can become a bit predictable and possibly boring, monotonous.
Break out and buy some flowers. Set a night every week for date night and visit new restaurants. Write your S.O. a love letter. Go for a casual Sunday afternoon drive. Anything new and different just might be the spice you need.