By the question, I can't tell if you're married or not. If not, the answer is simple..Love yourself enough to walk away. Love is given but is not always accepted. The love you have for yourself should be complete and whole and uncompromised when shared. Would you loan your car to someone who steals out the stereo, cuts the seats and so on? No. It's the same with our hearts. If the other person is not cherishing you, tuning you to be better, making you happy, cleansing your soul, then walk away. If I bought a stereo that didn't make beautiful music pleasing to my ear, then I would return it. Now, if you are married, the question of unreciprocated love extends into, is there abuse? If not, then love yourself regardless of your partner and they will see this and eventually come around. But, it there is abuse, refer to answer one.