For Italian , I would recommend
Mangia - on South Range Line Road - I have been their twice - very good.
Here is a place that looks nice - if you like French food - I have not been here yet.
Bistro de Paris - Carmel, Indiana
If you are willing to travel to 86th and Ditch -
Oakley's Bistro is great.
Mitchell's Fish Market is pretty good - not a romantic atmosphere though.
Glass Chimney is excellent.
If you are looking at an anniversary or something romantic, I would go to Oakley's or the Glass Chimney.