Blue Water Martini Lounge (9016 31st St., Brookfield) is a very cozy place for couples serving over 100 large 10 oz. martinis (I believe the most anywhere), they don't serve food but allow you to bring or order food in (or they sell snacks). On Tuesday's there is a free appetizer buffet for all to go along with their "Thirsty Runners Club" and I see that on St. Patrick's Day there will be free corned beef - last year it melted in your mouth. Their outdoor water garden is beautiful in the summer.
http://www.bluewaterlounge.com/Also, I recommend the Salt Creek Wine Bar (8900 Fairview Ave., Brookfield - right along the Burlington tracks) in Brookfield - you can lounge on sofas or eat at the bar. They have a lovely menu - my favorite appetizer is the Plato Espanol - toasted rustic bread, rubbed with garlic and tomato, drizzled with olive oil and a pinch of salt, served with Manchego Cheese & Jamon Serrano - so good!
http://www.saltcreekwinebar.com/