I don't see any reason to change your mind about Bonaire. Nov. is the last month of the hurricane season, but Bonaire is just south of the hurricane zone. So you *might* get some rain in Nov. but other Caribbean islands *may* get a lot more rain then, and possibly (slight) even a hurricane. I was in Maui in Nov/Dec. and we even got a little rain there, but not enough to spoil the trip at all.
My husband was in Bonaire in Nov. several years back and they had a huge storm with wind and dumping rains one night, but that seems a bit out of the ordinary. For the most part the weather was great and they had some awesome diving. Somewhere I absolutely want to go diving one day.