Beth,
Sask is right.
You don't have to go out and find a new one right away, but your legacy to the boy's is to honor the boy's. This may be by taking in more pups or otherwise.
So, for me right now; I say come and go as you please. Grieve for, and with us. We are all grieveing for you right now.
No demands. Just know we are all here, and we are many.
Scott