Can, consider reading Sheryl Sandberg's (Facebook COO) book about facing adversity, building resilience and finding joy. After her husband died unexpectedly she talked to some experts in the field of grief. I found it immensely helpful and wished I had read it much sooner. She talks in there about the three P's and right now I think you are struggling with the notion of permanence. How you feel now is not going to be the way you feel forever. Make sure when he is gone, you do have that good cry and let it out and keep letting it out when you need to. Enjoy your sweet girl.