Excessive grooming?

Hello all I hope someone can give me some advice - I bonded my bunnies a few weeks ago now and it's working out very well so I'm really pleased. However the younger female bunny Daisy is grooming Willow (a neutered male) a lot, he's a chinchilla lionhead x lop and he's now lost most of the thicker guard hairs and his mane, and looks really patchy now! Will this affect him (or Daisy?)

Thank you

Well at least they like each other !! I guess there is a risk if she is swallowing his hair??? is he moulting anyway ? our lionhead goes a bit thinner on top when she moults.. so i guess hair loss isn't the main worry??