Oh, that was abuse. It's no different from the mother who makes a huge scene at daughter's wedding, or funeral, for that matter. The absolute insistence on being the center of attention no matter what. Do you really think she'd have behaved better if you'd been in the ICU?
This was the mild version of what turns into Munchausen's by Proxy, if you're sick enough [physically], or she is [emotionally].
Sure, it may feel generous [and it's likely that we've all been taught that] to let her appropriate your triumphs and tragedies and nail their hides to her wall, but you know what?
You deserved some too.
Think of it this way: suppose you had become lost while hiking and were found close to starvation. You are in the hospital, and when food arrives for you, she snatches it off the tray and eats it herself, all the while carrying on to everyone within earshot about how terrified she is for your sake, how she can't bear to see you like this, etc. When the nurses ask why she literally took food from her starving child, she tells them that tapioca is her favorite dessert...