NAH1203-
I am familiar with both the area you live in (four years at UD will do that to you) and I have a number of friends that live in the area still.
I also can relate to having loved ones struggling with addiction.
Have you considered Al-anon meetings? If you type in DE and Al-anon there are a number of meetings....a lot are further north, but some on your side of the state.
I also really learned a lot about family alcohol use and how it impacts us from reading work by Claudia Black. It helped me to understand what was mine (not as much as I thought), why it was hard for me to be around family at times etc, and the role I had taken on in my family....and how hard it is to break out of that role sometimes. I am one of those who did move a long ways away because I could not figure it out, but discovered no matter where I go I still have to contend with me.
I know that my suggestions don't help in the immediate now, but I am thinking of you and hope you take some time out to take care of you.