I got two guinea pigs Lucy and Peaches a couple years ago. A few months ago Peaches passed away and I ended up getting two new guinea pigs Fiona and Piper (who are companions). Currently Fiona and Piper have a cage together and Lucy has her own cage. Fiona is nice to Lucy but Piper will bite Lucy, and Lucy will just freeze and cry. Lucy will not eat, make any noise, and barley moves when she is around Piper or Fiona. But Lucy is perfectly fine when she isn’t with them and is very noisy when she is with me and she will eat in her cage even though it’s right next to their cage. I considered giving away Piper but she has grown on me and would be devistated if she was separated from Fiona. I want to get a larger cage for them to all live in together but I dont want Lucy to not eat and be bitten by Piper. What should I do?