Really? I for one prefer having all bad news broken to me in heavily filtered photos with little hearts and maybe "RIP" handwritten in the glowing multicolored text. You might be in the minority here, OP.

Sorry OP. I guess the best you can do is hope he's okay now. As for your sister, she's a little bit of a dumb***, but hopefully your grandpa will be out of the hospital soon. Take care OP :)

Social media can be fun hey. Not the same thing but i found out my sister was pregnant through Facebook. 7 years later and the relationship is still a little awkward.

OP here. Thanks for all the support and funny comments. To clear a few things up, my sister didn't post to Instagram from the hospital, she just took a selfie at home and complained about the things that aren't going well in her life. She had no idea that I didn't know about my grandpa and assumed that our mom had told me. Since my sister and I both live at home, our family tells my mom about any big family news with the assumption that she will pass it on. Right now, my mom is in a really busy period at work and I'm an American exchange student in New Zealand, so I'm sure she wasn't purposely hiding anything from me. Since I go away for college, she sometimes forgets to tell me things anyway.

its cool op. i found out my uncle died on fb...two weeks after

I found out my (dead beat) dad died from facebook. My cousins all posted that their favorite uncle passed away. I hadn't seen him in 18 years. Sorry you had to find out that way.

My family used to have a dog. But we were never home and couldn't care for her as well as she deserved, so my auntie offered to take her. When she died I was in college. I heard at the family christmas party that year from my uncle.

I learned about my Great Grandma's passing while browsing Facebook on a potty break at work. I called my mom to console her and she didn't even know yet. My extended family are dicks.

"Wassup biatches, took a selfe wit ma termnali ill grampa!!!!!! #Nomakeup"

Not understanding the problem.