My grandma just passed and my bf is being an asshole

So my brother called to tell me my grandma on my moms side just passed. I haven’t seen her in a few years but whenever I went to see them I loved it. Anyways I’m sitting here crying my eyes out and he’s saying well if it isn’t your mother or close relatives I don’t see why your being so emotional. I just I don’t know what to say or do rn. I know I only saw here a little bit though out my life but I still cared and loved her.