Maybe the person you're with doesn't have to be your best friend. Maybe the person you're with doesn't have to share your values. Maybe the person you're with doesn't have to be with you when you need them to be.
Maybe it's okay for your other half to smoke even though you hate the smell that sticks to their clothes. Maybe it's okay for your other half to drink even though you're uncomfortable when it's with strangers. Maybe it's okay for your other half to be a stranger.
Maybe it's okay that the person you love makes you cry endlessly for days. Maybe it's okay that the person you love swallows your heart and spits it to the ground. Maybe it's okay that the person you love isn't the right person for you to love.