More about my grandmother

I called my older brother tonight to ask him questions about our dad's mother being sick and about to die. He said that she had been sick for a while because of lung problems (which I knew), but I guess she had gotten so bad that they put her into a nursing home. Then she had a heart attack, and now her heart is only functioning at 19%, whatever that means. The doctors have told her and my father to be prepared for the end because she doesn't have much time left.

I'm surprised by how I feel about her being about to die. I have had no contact with her in over 6 years, and I haven't had any contact whatsoever with my father in almost that long. But I feel like I should feel bad about it. In the end, she's family, and I should feel bad about a family member dying, right? I have nothing but bad memories of her. I have no good memories to look back on and feel sad about. When she dies, she will just be the crazy grandmother who was once a stripper and who gave me a box full of thong panties before I was even a teenager, saying "every girl needs sexy underwear."

My brother said that our father told him to tell me and our younger brother that we'd be welcome at her funeral whenever she does die because after all, we're her grandchildren. I know for sure my younger brother would never even consider going, but part of me thinks I should go to support my older brother and because maybe one day down the road (like WAY down the road) I may want to have a relationship with my father again.