Grandma diagnosed with cancer 😔

I am absolutely heartbroken. Today my dad called and told me my grandma (his mom) was in the hospital. She took the phone and told me that she was having trouble breathing and has been getting really dizzy, but not to worry about her. She handed the phone back to my dad and he said that the doctor walked in and he’d call me back. About 30 minutes pass, and I’m still waiting for his call so I call him back and he tells me he’ll call me in like 5 minutes. Instantly when he called me back, his voice just sounded different and I knew. He said that she didn’t want me to know (because I’m 1,000+ miles away and 6 months pregnant) but she has breast cancer and that it has also metastasized to her brain. I obviously started to break down and my husband is holding me while I’m on the phone. We ended our call and my husband and I both were just crying and holding each other all day. My grandma is like my mom, no. She is my mom. My own mother didn’t want to be a mother, she stole, lied, allowed her partners to beat us and I finally cut her off last summer. I’ve always seen my grandma like my mom, and I use to call her mom growing up because she was who I with all of the time if my dad was working. She showed up to everything. Every honor roll assembly, every band recital. Before I moved away, we’d spend every weekend together trying new restaurants in our city, going to Target all of the time, or just spending hours on the couch snacking on junk food watching crime shows. I’ve always said that if I lost my dad, my husband or my grandma, that I know my heart would be forever broken and I don’t know how I’m going to get through this. The prognosis isn’t good, so I’m flying down this week and spending a few weeks down there. She has surgery tomorrow for the breast cancer and then they’re starting chemo right after. I thought this year I’d lose my great-grandmother (her mom), but now I may lose my other half as well. 😔