Losing my grandma never had to deal with this im so hurt.

My grandmother was a big fighter of cancer for 5 years. She was getting better then went down hill recently giving her a few short months to live but I dont think she will make it much longer she hasent been eating. And I've been so emotional. Im 28 weeks pregnant I've never experienced someone so close to me pass away .. I cry every day , I dont know how to control my emotions. My partner on other hand has dealt with death before in his family I've told him before can we not fight please .. Im going through alot right now and he seems to really not care. And told me to stop talking about my grandma, and the other day told me to get over it everyone dies... like sorry? Im not going to just get over It. We were all going to go for a family walk but I guess I made him mad and he told me to go inside and not come.. so here I am inside lisenting to sad music. If he had a family member die I would 100% be there for him and be by his side not tell him to get OVER IT!!!