I always thought of it like this; when I was single I was content with being single, being in a relationship was the furthest thing from my head. Now that I'm in a relationship again, its the very same. Each has it's own perks and I believe to make the latter work you need to be at a stage in your life where you are ready to fully commit, because it takes a lot of your effort & time. I'm reaping the benefits of being in a relationship and it makes me happy.