beer in secondary and started fermentation again?

hey guys got a nother question ... i transfered my beer from the primary last night after sitting for a month and at week three i checking the gravity it went from 1.070 to 1.020 and checked it again yesterday and it was still at 1.020 so it stayed at 1.020 for a week....

so i added 2 pounds of frozen raspbeerys and 1.5pounds of raspberry puree and the zest of 3 oranges.... now i just went and took a look at the brew and the air lock is goign crazzy ...getting 1 bubble a sec ... now did my beer start to fermentation again or soemthing....

if it did will that eat up all the flavor of the raspberry i put in?

Yep, it's fermenting the sugars in the fruit.

but will that kill the flavor im looking to get from it?

I wouldn't think so, but I've only drank fruit beer, never brewed one.