Bubble is a female Bubble, and can be easily popped.
Good relationships: Ruby, Match, Pencil(formerly), Ice Cube, Book, Pin, Fanny, Lightning, Cheese Orb, Puffball Speaker Box, Loser(on her side), Balloony, Teardrop, Snowball, X, Gelatin, Lollipop, Woody, Flower, Four, Leafy, Firey
Bad relationships: Blocky(arch-enemy), Firey(sometimes), Four, Flower(formerly), Eraser, Snowball, Pencil, Evil Leafy, Leafy, Match, Stapy, Firey Speaker Box, Flower Speaker Box, Spongy, Ruby, Pen