My Guinea Pig Jumps When I Pet Him. Please Read.?

It's great you got a companion for Cocoa!!!! Animals love having friends!! I can understand the petting thing with the new one since he doesn't know you very well and is probably very scared. Try having some one on one time with him. Let him sniff you, maybe lay down and set him on ur stomach and give him treats when he comes close to you. The whole eating thing is very strange. If he is eating other foods besides veggies he might not like them but if he isn't eating at all he is probably sick.