Bless his heart...When I brought Cheri into Chanels life - I made SURE I doubled the attention for Chanel because I didn't want her feeling replaced....Your little boy may be feeling really insecure and I would just try to train him as you were - but not put so much pressure on him. It can take them a few months to adjust to a new puppy - He sure does sound depressed....and YES do everything you normally did - he is feeling really stressed due to the changes...
as far as 'fighting'....I know when Chanel was upset at first that we had another puppy - I would hold them BOTH together - just talk to them and kiss them ALOT - eventually Chanel realized Cheri wasn't a threat to her and they are best friends now. It sounds like you are really trying - but I would try to relax a little and just enjoy them - the training will come....but I would never punish him for being upset at the new puppy.
I just want to hug him....
