deryckmysterygirl.jpgboa blonde dinner hollywood hand bag

But where the heck was his wife, Avril Lavigne?!

Could those divorce rumors really be true? We haven't photographed Avril and hubby Deryck Whibley together in months, but we did snap the Sum 41 frontman with a mystery gal last night at Boa steakhouse!

So...are Avril and Deryck dunzo, or was this just a friendly dinner meeting?