Victoria's Secret Bare Vanilla Body Spray Turns to Acetone After 5 Months

Ugh, I'm so disappointed with my Victoria's Secret Bare Vanilla body spray! I bought it almost 5 months ago and I haven't even used it that much. Here's the kicker: even though I've kept it out of the sun, the scent has completely changed to this weird acetone smell. The original fragrance is totally gone! To make it worse, the expiration date isn't even close, and I haven't stored it anywhere hot.