First I am not sure why you need a buddy on every dive especially if you are hunting - they have solo certifications for that very reason. Know your risks - mitigate them as best you can - with or without a buddy.
As far as the boat - that is fine wait till the "facts" come in - however since this has happened before in the past with the same charter - different boat and different crew is what I have heard - if they did leave that is inexcusable. If they stayed and did a search - I would expect that the facts will come out sooner than later.