One more thing. I don't wanna seem like I'm preaching, but promise yourself that, NO MATTER WHAT, you won't speak to this person for at least a month (better a year, but... it depends). I'm serious - do not speak to this person or "through" anyone else. If this person begs you in any way, just say you need time to think. Take that time. When something like this happens, the absolute WORST thing is to get back together without time in between. The simple fact of the matter is that your trust in this person will always be suspect and that's worse than any solace you could ever gain by getting back together.

As for booze or food or whatever, don't use it as a crutch. You may not be able to walk again after the required amount of time goes by.

Good luck. I know a lot of broken hearts out there are pulling for you. You'll be okay.