Gotta disagree with you there, friendo.
There's the chronic stuff that hums along at a low level, there's the owie shit that's a little more immediate, there's the yowzer shit where you need to stop and address it, and there's the WHYGODWHY shit that is like a nuke went off inside your body.
Maybe the 2/10 pain becomes background noise and the 4/10 pain becomes something you tough through, but the 10/10 pain... it's like when you eat too much wasabi and you feel like your nose is going China syndrome. Everything in life needs to stop until the pain subsides.
I bring this up because Kelly had to be somewhere in the 10/10 range a long time ago. Coldness In My Heart had some self-inflicted pain, but not on the level Kelly was doing to herself.
The level of damage she inflicted on herself is not something she would have gotten used to.
To change the subject slightly, is feeling sorry for herself a "reward" or not for Kelly? I know people where the level of self-pity is clearly in some reinforcing state, but for Kelly?