First, you need to give her a present every day (preferably cake!) this will add points to her LP! then you need to witness these heart events:
Black heart event - Vesta's Farmhouse - 10:00am TO 12:00pm - Rainy Day - NOT MONDAY!!! LP needed - 0 to 10,000
Purple heart event - Path to goddess pond - any day - NOT MONDAY - 3:40pm TO 6:00pm LP needed 10,000 to 20,000
Blue heart event - Dr Hardy's Clinic - rainy day - any season EXCEPT WINTER!!! - 6:00am To 12:00pm LP needed 20,000 to 30,000
Yellow heart event - Blue Bar - any day EXCEPT WEDNESDAY!!! 4:00pm TO 6:00pm
HOPE THIS HELPS!