Is NARCISSISTIC HUSBAND RESPONSIBLE FOR MY WEIGHT GAIN?? 

Thank you ladies! I know I need to take it one day at a time. Its hard to look at him; he hasn't changed. Just a little because of his drinking and drugs but he still looks good, I makes me sooo mad!

I am in the same situation and it STINKS.  My ex is continually making some derogatory comment to me.  And although I don't agree with what he says, it still hurts my feelings.  I too have gained weight since our split
(30 pounds).  I finally realized that I was allowing myself to gain weight b/c I subconsciously didn't want to start dating again b/c I was afraid.  Once I realized this, I was able to allow myself to feel good about myself and at the same time not feel that I needed a man in my life.
Losing weight is extremely hard and keeping it off is harder.  Take it 5 pounds at a time so it isn't overwhelming.  Drink tons of water too.  Good Luck:)

Yes asim,
He probably is responsible for your weight gain and you can blame him.  It's hard to live with someone like that and not  be depressed.
He's not "acting" when he seems fine. He thinks he's done nothing wrong.

But YOU are responsible for getting your old self back. Find someone to call and say "have you walked today" or someone to walk with you. I have to make myself go out the door and start my day every morning. But I make that first step out and I'm okay for the day.
Be determined. Use your willpower and get a little angry at him. I will not let him continue to control my life. I will lose this weight. It just takes that first step. I know you can do it.
Keep going to your separation group. That may help.

Now I must make that first step out the door to start my day.
Take care and good luck