Biarritz

For old fashioned romance

Pleasing her: Traces of the Belle Epoque in the architecture and style of the town show though on the lifestyle as well. Napoleon made this one of the most glamorous and fashionable seaside resorts and it's still popular with the vintage proponents of the celebrity set—in fact it was probably the first proper seaside resort— and its still benefits from the early popularity of seawater treatments, which these days are called spas, The chocolate shops in nearby Bayonne are some of the best in France.
Pleasing him: Biarritz is between the Pyrenees and the Atlantic so there's skiing in one direction and surfing in the other.