Hi Tigerlilly.. and welcome, you're in a good place. I'm sorry you're hurting. Alcoholics early in recovery need to focus in order to stay sober. In fact, AA advises no intimate relationships for the first year of sobriety. Perhaps that's why he's trying to end his relationship with you. I know that doesn't make it hurt any less. You're strong to not be angry with him, and that's good.
I've spent 2 years in a relationship with a recovering alcoholic and found much comfort in Al-Anon, as the other have recommended. It's not only a good place to learn about the disease of alcoholism, it's a great place to learn about yourself and how you relate to the alcoholic(s) in your life. I've been attending meetings off and on for a year and a half. Sometimes when I walk into an Al-Anon meeting, I feel bad. But I always feel better when I leave.
Good luck to you. Stick around and share. It helps!