Congratulations on 10 years!!! That's amazing & it's very sad you have no one in your life to share such an important personal achievement.
Love does not conquer all. Sometimes, even a long stint in rehab with several years of intense psychotherapy won't make a person want to connect & share themselves with another. Their drug of choice meets their most important needs, and no amount of love, caring, understanding & compassion will bring them around.
Take care of you & your needs. Life is short.