Create 12 Lovely Charm Bracelets.
You get this by using Loverly Charms, which are obtained duing Love is in the Air by killing enemies that yield experience. 10 charms are requited to make a Lovely Charm Bracelet. So you'll need a total of 120 Charms to get the achievement.
Good Lovely Charm farmspot for Love Token currency in WoD is at Shadowmoon Valley 37,22 underground, Carnivorous Squirrel.
Location video: http://youtu.be/xFxHTwzeI7A