Did Brandon Davis bust up Avril Lavigne’s marriage? Maybe not on purpose, but there seems to be lots of speculation on a recent vacation the two had. And Avril’s husband at the time was no where to be found. Was the marriage already split before Brandon and Avril partied on the beach?

More pictures of Avril and Brandon after the date…

Avril was married at 21 to Deryck and have been married for three years now. Via Bang Showbiz:

Avril Lavigne was reportedly seen flirting with another man in the lead up to her split from husband Deryck Whibley.

The ‘Girlfriend’ singer – who announced she was separating from the Sum 41 rocker last week – spent a month partying on oil heir Brandon Davis’yacht in St. Tropez, South of France, and sources say the pair have grown very close.

Sounds a little fishy to me! Brandon, no matter how greasy he looks or acts, always ends up by the hot women. How is that possible? Oh, wait, he’s a billionaire heir…I get it.