Breakups suck. Instead of eating the bucket of icecream go for a walk or bike ride. I like to find a beautiful trail or the river and go ride. It's a nice place to relax and think about other things.
First of all I would like to say I am sorry that this has happened to you, break ups are very painful.
Now that I got that out of the way........
It's his loss, you will be a stronger and better woman for the next man in your life.
Stay busy! Take sometime to pamper yourself and relax.
Take care of that body so you will be healthy and happy when the next Mr. comes along.
Everything happens for a reason and remember time heals all things.
Don't remain friends because he wants to. Remain friends if you want to and you can handle it emotionally.