Never disrespect a woman, or a man, or a dog, or any animal.
Never bad mouth someone in a public forum and use their real name (I hope that's not his real name).
Never try to feel better about yourself by being as big of a jerk as someone was to you.

In other words, you're not very experienced at this relationship thing are you?
It's easy to be upset at that kind of behavior until you do the same thing down the road with someone else.
Here's the deal. Relationships can make anyone crazy. Even you.