Have your rabbit spayed or neutered (even though you don’t have to worry about unwanted litters, spaying and neutering reduces hormonal behavior and reduces your rabbit’s risk of certain conditions, including cancer.)
Provide lots of toys and chewables to keep your rabbit occupied when you are unable to spend time with it.
Spend at least three hours a day with your rabbit, even if this means just cuddling in bed at night.
If your rabbit is confined to a cage or pen, make sure you provide at least four hours of out-of-pen-time in a safe room for exercise and play.
Consider getting your rabbit another rabbit it can bond with!