Family relationships are hard!

My mom came and stayed with us when I had my first daughter (now 9). While I felt supported, my husband felt it was an invasion.

Depending on how young your grandchild is, he may be working on bonding with them. We women get to bond with the baby as it grows inside us. Our men don't get to bond with them until they are born, and that can take a while.

I understand why you feel the way you do, but keep in mind too that he has a lot on his plate as a new dad. He is distracted by building his own family right now. Try not to take it too personally and it will get better!