Yay! I'm glad Molly is eating and pooping again! I don't think anyone is ever as happy as rabbit owners are to have to clean up poop everyday!
That seems like a good sign that Lucky wants to lay next to her! Hopefully the bonding will go well when Molly is all healed up.
Healing takes diffrent times in diffrent individuals, but rabbits usually heal quickly as long as they are healthy. Her incision should be starting to heal in 7 - 10 days, with complete scar formation taking up to 2 weeks - give or take. Little Molly should start healing up and feel back to her normal self in no time!