I am laying in bed

Mom walks in, no real discernable expression on her face. She sits down next to me, "Hey, so, I know you might not care but, your grandma died last night." I sit there with an empty look.. "what?" I thought I would've had more time.. this isn't fair. The next few minutes are weird, can't quite remember what i said but i do remember crying afterwards. Feeling just broken, empty. I remember the last time i saw her. I had opted to go help at work instead of spending more time with her, was that really the last time i would see her? I mourn the relationship i couldve had with her. It saddens me to this day.