I would move him so he can't see Betty. What I do if I can't move a male because of space issues I'll tape newspaper over the cage so he can't see any of the girls. This calms them down and they'll eat more.
Hi red Flea! A little advice ( Trying to not be offensive...sorry!) is to not bring up old posts, it muddies up the sections and I doubt the original poster will see it. We love the advice but try to keep it to new threads. thanks!
- Matt
Come here little guy. You're awfully cute and fluffy but unfortunately for you, you're made of meat