Because I think someone just dii-iid! [sing-song voice]
In addition to the surprisingly obscene well-wishing, this cake also suffers from a lack of grammar skills (it's a run-on sentence, and yet the "M" is capitalized - and why two periods?) and a hideous color scheme. I think those things in the corners are supposed to be rosebuds, so why are they grayish purple with blue squiggles? Some repressed feelings of inadequacy, perhaps? Hmm?