Hung up on your ex? Why not make some money off of it

Each week on CNBC's "Elevator Pitch" series, an entrepreneur gets an opportunity to blind pitch his or her company to a secret investor. The investor doesn't know anything about the business being pitched, so it's the entrepreneur's one shot to sell it.

There are plenty of apps and dating sites out there for those looking to fall in love, but what happens when those relationships crash and burn?

One entrepreneur aims to help you through your breakups—and make some cash along the way.

"I had a breakup five days before Christmas, and found myself stuck with plane tickets to London that I no longer wanted," Annabel Acton, a former innovation strategist and co-founder of Never Liked It Anyway, told CNBC. "Then it struck me, what if there was a place you could sell all your breakup baggage from past relationships?"

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And with that, Never Liked It Anyway was born.

According to Acton, Never Liked It Anyway is the eBay for breakups, "a place to buy, sell and tell all things ex so you can move on and feel better faster." Now your "broken-promises" ring can bring someone else joy and put money in your pockets.

The site gets 2,000 visitors a day, and since its launch in January 2012, about 500 items from the 1,000-plus listings have been sold. Acton won't reveal the venture's earnings, but said Never Liked It Anyway takes a percentage of its sellers' fees.

The start-up also recently launched its very first product: the Bounce Back Box. Retailing for $35.95, the box is filled with an assortment of donated products intended to help you feel better and get over your ex. According the website, the value of the items in the box is worth well more than $100. Other than the cost of shipping and handling, the boxes are pure profit for the start-up.

Acton was given 30 seconds to blind pitch her company to Shark Tank's feisty millionaire investor Barbara Corcoran. After hearing the pitch, Corcoran wasn't entirely sold on the Bounce Back Box's viability.

"You're trying to hit a splinter in time and then that passes and your product is of no use," she said.

However, Never Liked It Anyway is not just a commerce site, Acton said.

"While we compete with the likes of eBay, we are more an entertainment property, like 'He's Just Not That Into You,' " the popular self-improvement book turned Hollywood rom-com, she said.

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Acton told CNBC the start-up is in talks with production companies to turn the website into a TV show or film.

Never Liked It Anyway also plans to adopt a sponsorship model with partners such as match.com, Aveda, L'oreal and Equinox, all companies that can help you feel better faster, especially after a breakup.

Never Liked It Anyway is currently in its first round of funding. Headquartered in New York City, the start-up has two employees.

Disclosure: CNBC owns the exclusive off-network cable rights to "Shark Tank."

Correction: Annabel Acton co-founded Never Liked It Anyway. Her surname was misspelled in an earlier version of this article.