Is Brittany Murphy trying to become like Paris Hilton who is known for playing musical chairs with her boyfriends? At least she is trying by ending her engagement for the second time, this time with Joe Macaluso.

So what went wrong here? The same thing that is wrong between Britney Spears and Kevin Federline. The former is a celebrity and the latter is, well, just nobody. Joe Macaluso, like K-Fed, used to be the guy who set up the lighting while she was filming the movie "Little Black Book."

In other words, while construction workers may look hot from your airconditioned office window, they don't make great life partners. When it comes to making a marriage decision, for most of us, it is best to stick to someone who is more like you. It sounds romantic and might work in rare cases, the reality is that a couple from very different backgrounds finds it hard to make it work.