Do you think it's smart to ignore your ex after they break it off with you? If you want to move on and have nothing to do with that person, is that a good idea. Or will it just make them angry? How about if your trying to get back at them?

It's called "no contact" and it's the best way to handle things. It makes the healing process a little easier on yourself. Getting back at them serves no purpose and only makes things worse.