Your wife is beautiful. Would she be approached, not likely. It's an all inclusive resort. They do not allow anyone in like local men without paying a fee that is way beyond what most Jamaicans can afford. The vast majority of people are couples in their 40's++++. Most young are not secure enough sexually to handle it, or afford it.
That means there are few single men there. That wasn't always the case. I think they charge a lot more for singles. Your best bet would be to go when there is a swingers group going. Hedo is a very sexy, fun, resort, but a lot depends on when you go. Hedo appeals to a wide variety sexual interests. Find a group that appeals to you and go with that group. If you go by yourself, you could find yourself watching everyone else have fun.
Hedonism is a great resort. We have reservations in March. It will be our 30th time at the resort. We have an amazing adventure everytime we go there.