Avril lavigne girlfriend, what they say
But make sure not to call her anything that is connected to heavy meal, like pork chop. She will definitely not see that as cute and will probably think that you see her as fat. Another category you can take your pick from is cute animal, like kitty cat. You again have to be sensitive with your choice. A gerbil may be cute for you but she will probably find it offensive if you call her anything from the rat family.