Breezes is between Sosua & Cabarete, so it would be logical to select from one of the two.
Next thing to consider, is the different foods Dominicans eat.
Our tastes are generally quite different, however, most Dominicans love good seafood, so unless you find out she doesn't, or that you don't, that would be the way to go.
Shrimps, Lobster, etc.
In Sosua, your best choices for ambience with good seafood would be the Waterfront & PierGiorgio.
Cabarete may have several.
I only know of the Casa del Pescador, and I don't even know how good it is, so we would need the Cabarete members to chime in with recommendations.
You might want to check with her to see if she likes seafood, and if you like the idea, start another thread, asking for the best Cabarete seafood restaurants with romantic ambience.