An easy diet is one that goes suffer - reward - suffer - reward. Such as eating only ultra healthy until dinner then having a nice dinner (but only reasonably sized).
Don't focus entirely on running - your knees might not be able to take it. You don't even look that fat - no man tits no gut etc.
You assume you're natural weight is 205, but I think thats unlikely.
Here is a site to determine your body type
Bodybuilding.com - Paul Becker - What Is Your Body Type? Take Our Test!
You are prob an endomorph.
Ignore their workout advice though - they are discussing damage control - which is the wrong approach. Endomorphs make the best power lifters and wrestlers - train to do well - train to your strengths.
Body Build - Somatotype
Basically as an Endomorph you can either be a bad runner with a thin enough but still unattractive body (think Jack Osbourne or Tim Sylvia)- or you can lift weights with surprisingly rapid gains in strength and size (if you make that your focus).
But you still need to do some dieting. Try to get 30% good protein in most your meals.
You might be thinking 205 is right for you as that was your weight in teens / early 20's. But you also had a smaller bone structure back then.
Take my advice as an endomorph who went to a lot of trouble to get thin - realized it was bad idea and now has to rebuild a lot of lost muscle.
It seems self esteem is an issue- you feel too fat to go to the gym - The problem is without lifting weights you may never have a body you feel is acceptable to show at the gym. I would recommend buying some home weights - and buying a bodybuilding book with some pre-designed work outs. Or simply going to the gym - it really won't take that long until you are lifting larger weights than most there - you do have a size advantage on them after all.