Should I cut this friend off?

OK ladies, you all are usually my voice of reason so asking something unrelated to men but something that reminds of low value friendships. A fair warning, I’m usually an overly emotional person so this may be something completely normal that I am blowing out of proportion.

I have this friend that I work with and I’m very close to. Her and I have gotten closer in the last year and a half and we have the type of friendship or we pretty much talk every day and see each other multiple times a week. She starts seeing this dude and up until recently she wasn’t seeing him as much. As of the last month she’s been seeing him almost every day and cancelling plans/ Being increasingly unavailable. I basically tried in the beginning and have since then given her the space to enjoy the relationship. Wednesday last week I ended up at the ER because I have excruciating pain. She knew about it because we work together and She’s the person that backs me up if I’m out of office. She hasn’t messaged or called once, at least not by herself. She’s only message on the group chat we have on that too because someone forced her into the conversation. When I texted her the next day and mentioned how I was surprised but she hadn’t reached out she told me that I had ignored her over the last few weeks and she wasn’t going to keep reaching out. Which is untrue because I have just been calling less. Anyway, I was still sick, I had a surgery the next day and it has now been days since I have heard from her. She hasn’t followed up once.

Am I crazy for thinking that a friends medical emergency is more imperative than your ego being hurt? I am thinking that this is a friendship I don’t want to maintain but I’m unsure if I’m overreacting.