Hi GTO, I too felt very out of place for awhile as all of my friends and contacts were married and all of my activities had been focused on doing things as couples or doing things with the kids.
I did (at first quite reluctantly) start hanging out with a single friend, and similar to what SP said, I met others through her. I was reluctant because I don't WANT to be single again...but realized with time that I needed to meet new people as well.
I took ADs as well for awhile. And they did help me tremendously. I eventually weaned off of them as I became stronger within myself.
You will get through this and it will become much less foggy. Thats for sure.
Thinking of you xxx
TPS Me: 44 H: 42 M14 T17 S10 D7 10/10 H moves out after death of his father-same month 21/04/12 H is 'DONE' 04/05/12 OW/PA confirmed (rumors from 2010) July '14 H ends affair May '15 H moves back home