Questions I Have About Bb-8

(I haven't seen the movie)
  1. Does BB stand for "Beach Ball" ?
  2. Is it related to R2-D2?
  3. Is it dating R2-D2?
  4. Why didn't they just call it R2-D3?
  5. Is it a vacuum?
  6. Did they notice the last half looks like a sideways sunglasses emoji?
  7. What is it hiding 8 of?????
  8. Is it weird that I'm very much attracted to it?