In this era of Snooki, Bieber Fever, and Tweets that cost athletes as much as a down payment on a house, our obsession with keeping tabs on celebrities has reached an all-time high. Even if we claim to be uninterested in the lives of the rich-and-famous, every Betty has found herself hiding away a starlet magazine for beach reading… we just want to see who’s making up and breaking up!

Read Can No Strings Attached Relationships Really Work?

Instead of just glancing at the celeb spottings at Starbucks or the latest uninteresting Kardashian adventure, maybe we should put our celebrity obsession to good use by learning from their relationship mistakes. I mean, fool a celebrity, shame on them. Fool a normal person, shame on us, right?

Here are just a few of the love lessons celebrities have already taught us:

1. Don’t Have an Open Marriage

Courteney Cox may have learned a little too much about being friendly from her years on Friends. The Cougar Town star and her husband, David Arquette, reportedly agreed to sleep with others during their marriage. But, while they were out exploring new territory, they seemed to have lost touch with home base. The two separated due to a lack of luster in their own bedroom (among other things). Doesn’t sound like such a good idea, does it?

2. Don’t Date a Rude, Rude, Rude Boy

Props must be given to Rihanna, who bravely walked away from her former boyfriend, Chris Brown, after he assaulted her in early 2009. Every lady has the right to be treated fairly and should indeed, be made to feel like the “Only Girl in the World,” as Rihanna sings. We may be attracted to the bad boys who are wildly unavailable and unattainable, but seeking this type of dude isn’t the best choice. They don’t deserve us if they treat us badly… even if they may hold our “Umbrella” for us.