I have no intention to rekindle the lost relationship with my best friend of 12 years, but please help me make sense of this.

We haven't privately talked in over 2 years, not online, not irl. She's left me on read in the private chat, as well as in the group chat. We've only seen each other a couple of times in group setting over the past years. We had a little book club that she left unanswered and singlehandedly closed down too.

The weird part is she never stopped sending tiktoks, which I on my turn never replied to because I couldn't care less about shits and giggles if we didn't have anything substantial anymore.

Then suddenly a couple of days ago she sends me a tiktok about some new hyped book with her own message 'oooh, something we should read soon!'

I had to cancel a group activity next week because of a surgery. She never bothered to wish me luck, or check if the surgery went well.

So, this is just delusional behavior right? We gonna have our cute little book club after not talking for 2 years and then you also can't even be bothered that I'm undergoing surgery? In which world are these even normal interactions?