2. Do Not Send That Email
I think I may be too old to think of email as a way of conveying urgent emotion. Or, more likely, it's just that I got married before I even had a personal email account. However, I try to stay hip to what's happening, especially with my friends, and I know there's a lot of emailing going on out there that is romantic and even heartbroken in nature. And I think that's totally cool. Writing can be very therapeutic, and often it's easier to convey your thoughts when someone is not interrupting you every two seconds. So if you find yourself in the middle of the night writing out a ton of thoughts to your ex via email, you are not entirely in the wrong. In fact, write your heart out. The key is, do not press "send." Print the email in question and put it in the "Send Later" bin. Sure, you can reread your email a million times and edit it to perfection, but your judgment this late at night and this hurt is not 100 percent no matter what the tequila is telling you. You can do yourself zero, nada, no harm by holding on to your electronic missive until you've managed to sleep a few hours and look at it again and/or have had the chance to read it to a friend.
3. Do Not Go Over to His House
This is like the "don't call him" situation only ten times more horrible. It's upsetting me just thinking about you dragging your bed-head self over to his house and standing there in front of his door, sad and only about to get sadder. It's not even that I care that he's going to think you are a psycho and tell all his friends about your "visit," it's just that this kind of behavior means that you aren't loving yourself as much as you should.