I need help but I don’t wanna be rude?

There is a girl in my one direction group chat who is so annoying (she turns 24 soon so she’s literally an adult) like yes she really sweet but she tells us other group members every single detail that happens in her life like recently she scraped her leg and she’s asking if anyone is a Dr in the gc (I’m the oldest in the gc and I tell you that no one is a dr) I tell her no but go see one and then texts saying that her cousin is an EMT and I’m like (in my head) then why didn’t you text him first like omg she also tells us whenever one of her family members is in the hospital or passes away and I’m like I’m sorry take as much time as you need (being very supportive and caring) but she keeps telling us every single detail and honestly she’s making me feel so freaking depressed but no one wants to tell her to stop coz they don’t wanna be rude! I would remove her from the gc but I’m not the creator of it but the creator left the gc a while ago! HELP! What should I do without being rude and making her feel bad!
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Oh yea also to add on a few weeks ago she asked us how long it takes to make frozen fries in an air fryer like as if we know like we’re not the internet 😭
I need help but I don’t wanna be rude?
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