I’m pretty sure this is it. It looks like mods straight-up razed the thread. There are comments remaining, but only after you scroll past the sea of deleted content.

I found one commenter that made a really interesting observation:

I think you and your sister have different definitions of what love means. You think love means you put up with bad behavior from your loved ones and she thinks love means you don’t behave badly towards your loved ones.

I did a cursory search and it seems the user deleted their account.

I don’t have it handy now but I just SearXNG’d the title with quotes.