These are the places I think you'll love here:
Definitely check out the
Beavertail Lighthouse in Jamestown, RI -
Beavertail Lighthouse and Park - Jamestown RI
Just gorgeous and VERY romantic at sunset ~
I highly recommend this restaurant in Jamestown ~
Trattoria Simpatico
Dining and Catering
13 Narragansett Ave
Jamestown, RI
(401) 423-3731
Dining in Jamestown RI
DEFINITELY see the
WaterFires in Providence since you'll be here in the summertime ~ hopefully your 3 days will fall
on a day that it's scheduled ~
WaterFire 
So romantic ~ has such a medieval feel and words just don't do it justice.
A great night out and free too! You won't be sorry!
East Greenwich is fantastic also ~
Lots of quaint little shops right on Main St...and if you're into history, East Greenwich was established in 1677 and has
tons of gorgeous historic houses to see.
East Greenwich Rhode Island
Also...there are many wonderful restaurants & cafes all within walking distance of each other....there's a little art
gallery, and a fantastic wine shop on Main st. too. "Coffee on Main St" - (GORGEOUS coffee shop with a lovely fire going in
the back room & the BEST coffees....and they even have an attached "martini bar" ~ just fantastic)
Restaurants in East Greenwich: Grill on Main, Cafe Fresco, Trattoria Del Corso, Post Office Cafe ~ all on Main St.
For great summer nightlife, East Greenwich has "Twenty Water St", and "Table 28" situated right on the harborside.
(East Greenwich is along an inlet of Narragansett Bay) These two restaurants/lounges are located just a 5 minute walk from Main St. ~ just ask the locals!!!
If you make it to East Greenwich, check out Wickford also ~ only about a 10 min. drive away ~
Wickford Village Rhode Island - Shopping & Business - Home Page
Beaches -
Daytripper's Guide: Narragansett
Now, have you ever been to Martha's Vineyard? (sorry to recommend a non-Rhode Island place, but if you haven't been to this area before you shouldn't miss out) You can actually catch a ferry (called the Fast Ferry) from
N. Kingstown, RI to Martha's Vineyard. Block Island is okay but Martha's Vineyard blows it away!!
The ferry is VERY fast and a lot of fun ~
Vineyard Fast Ferry - Martha’s Vineyard Ferry
More on Martha's Vineyard ~
Martha's Vineyard Hotels, Accommodations, Real Estate, Travel, Restaurants, Inns, B&B, Bed and Breakfast, Rentals, Properties, Vacation Rentals - Home - Martha's Vineyard Online - The Official Site of Martha's Vineyard
...and if you come back on the ferry when the sun is setting, it's just glorious!
If you make it to the eastern part of the state, Colt State Park in Bristol is very nice. Unfortunately, if it's crowded,
it's not very peaceful when people are allowed to blast the music in their cars etc...but really gorgeous views:
Rhode Island's Best State Parks
I hope this helps. I've tried to point out some of the romantic spots you might miss if you simply spend your time
checking out "Newport Mansions" which seems to be all people do when they come here!
Also, if at all possible ~ See a play at the
Trinity Playhouse in downtown Providence. Absolutely fantastic actors ~
you'll get to see the historic theatre too ~ so pretty ~ and you can even grab a few beers at the Trinity Brewhouse next
door.
Trinity Repertory Company - William Damkoehler
~~Rhonda