@Vallerrie, do you watch football? You look a team called Chelsea? Look them up in the log table, you'll understand why you should never reunite with an ex

But on a serious note, I personally would not go back for money. But maybe to head a new project or division but completely away from the irritant former boss!

I see 3 options:
1. Attend the interview. You will have to convince them that you will not be looking for another job 1 month down the line. You could reject the offer after winning the interview, but this could complicate your future chances with the organisation if not handled with kid’s gloves
2. Send them a regret letter, indicating that circumstances have changed and you are unable to take the job at this time but still interested in working for them in future
3. Ignore the interview. With this option, you will have to forget working for that organisation in the near future.

I have resigned from jobs four times. You should have seen the reaction of my family and friends. I used to tell them i know what i am doing but they would not believe it. They would laugh at me and sneer when i was down between jobs but deep down i used to know i am right and God always seemed to work out some magic and i would end up in a better paying job and more work satisfaction and that would shut them fast enough. What i am trying to say is that it's your life you are the one living it nobody else, then why should you allow others to make it unhappy, it's already difficult enough. Always follow your heart the money will follow.
Also never go back its like divorcccing a bad spouse then going back to them, you will never leave, never grow ,never know your true potential and will always wonder what if.............

Lol @Siringi