Oh, my heart goes out to you. I am so sorry! I looked at your profile and your pictures and its obvious he was very well loved! And no, its NOT wrong to cry so much over a puppy. It took me months to get over my last loss. We all love our dogs very much on this site and we all understand how you feel. I feel for you having to tell your daughter, that will be hard.
Many hugs from Sadie and Linda.