Divi is a bit isolated from most of the places to eat, etc., so glad you have a car. As far as grocery shopping, my recommendation would be the Grand Marche by Mark's at the roundabout. And grocery stores in SXM sell wine and liquor, so no need to go somewhere else to buy wine if you don't want. However, you could try out Booze it Up store, a TTOL sponsor, as they have lots of selections of wines, liquors, etc. You didn't say how old you are, so not sure what type of dancing you are interested in. Prive is a night club which is in Simpson Bay. You also have Tantra, which is another nightclub, more for the younger crowd than I am though. For dinner, mercy there are a million places, what type of food do you like? As far as massage, you can probably get one through your hotel.

Enjoy!