Blood warning and toph spoilers ahead. Ok good. I was vague enough that you all have some idea of what happened yet no idea at all. Good. Good. Here's a clarification. Boulderpatch and Cinderglow do not have any connection in the PMV. Cinderglow is not angry at Boulder and Boulder is not angry at Cinder. It also has nothing to do with Boulderpatch wanting to mentor Dovepaw. There is no way he'd even want to mentor her. And even if he did, he wouldn't be able to. Dovekit/paw is the focus.
Song is from tiktok