Indeed, this same thing happens every day on every tropical island in the land.
I am sincerely glad that you posted this and I am impressed how genuine you were in your trust of him prior to his disappearance. It reflects well on you coming to a strange place with such an open mind.
Aside from posting a list of good guys and bad guys on Caye Caulker, the best way to check on someone is to ask. If the certain someone has been on the island for a while, everyone knows if he is a gamer or not.
Unfortunately, there are VERY FEW genuinely single and employed men on the island with the time to fall in love with you. When REAL MEN fall on hard times, they work harder, taking on new and different jobs.