post-TFA Poe seems to handle the aftermath ok, leading his squadrons, helping Finn settle, etc. but he's only keeping away a meltdown by falling into an old vice he picked up when Shara died. When it's too much, he pulls out a vibroblade shard or what's handy and bleeds until he feels better. He's been more aggressive with it recently, but really he's completely okay, for real he's fine.

Finn walks in when he's at it & Poe says it's nbd. Finn isn't stupid. He knows it's not nothing & not ok but he also knows there are some fucked up rituals out there- he lived with Kylo Ren. Maybe it's a pilot coping mechanism thing. He A) tries to gauge whether the others do it but accidentally reveals what Poe's up to or B) goes to them/Kalonia to vaguely ask for advice on how to help & accidentally reveals it or C) author's choice on how shit hits the fan with/without Finn. Either way, angst & comfort pls.

+: Leia gets involved & Poe's so terrified of being found unfit for duty he disappears for a bit & everyone fears the worst.