Byron Velvick and Mary Delgado

Another Bachelor couple bites the dust.

After six rocky years together, Byron Velvick and Mary Delgado have decided to call it quits, Us Weekly reports. The couple met when Byron was the star of The Bachelor's sixth season.

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The couple has had their ups and downs. After their whirlwind romance began in 2004, Delgado was arrested in 2007 for assaulting her fiancé and again in 2008 for public intoxication, resisting arrest and disorderly conduct.

This new split brings the Bachelor/Bachelorette track record officially down to four out of 18 couples still together, with only one of those having led to marriage.

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Check out the full list of The Bachelor and Bachelorette's history of failed romances here.