Why don't you just invite her to join the forum to learn more about bonding with her gliders. We will help with diet issues too if she cares to ask.
Keep in mind - As much as we want life to be perfect for all gliders - other owner's choices are out of our control.
In the mean time, you might give your friend an new (or clean gently used) bonding pouch and give her some tips on building her glider's trust. Let her know that gliders can bond with their humans at any age - but it takes some effort and patience on the owner's part.