Im sorry its not working out for you. I think its a risk whenever you add a new dog that they may not get along. I have read of others on here that have aggression problems with their multiple yorkies and I always feel so bad for them yet Im relieved Im not in the same predictament with my two. I do think it is more common for you to have problems if they are the same sex and especially if they are unspayed. I got my 2 as pups together so they grew up together and thankfully I havent had any problems with them not getting along |