Yes, Ghost, I found that happening to me too when I was living with my addicted one.
It kinda snuck up on me...did it do that to you too? One day I woke up and realized that there wasn't one single person I'd feel comfortable calling up to go have breakfast or a beer with. I'd closed them all out, focusing so hard on the addict(s) in my life (I actually had several...sigh) So lonely, and unhealthy too.
Is there any way you can slowly-slowly start bringing that back into a higher priority in your life? Even just one or two friends that you can talk to honestly...it really does help. I'm an introvert so that sort of thing is easier said than done for me...but I know it's the right thing to do.
Hugs to you,
GiveLove