That is so cute! My George does the same thing. We have 2 cats (George and Herbie) but George is the only one that has a thing about flowers (or their greenery, I guess).
I wish I had taken a picture of it, but my husband bought me roses for Valentine's Day as well. I put them in a vase and set them on a table in the living room and George went straight to 'em. It didn't take long and he had tipped the vase over, spilling water all over the place. So I picked up the roses, put them back in the vase and set the face IN THE KITCHEN SINK, fitting just inside the drain!!! That was the only place I could assure they would be safe and I could still look at them, all the while George kept chewing away. Crazy goon! Gotta love 'em.