The bar was...unusually reticent, in the lower layers of her mind (and she hadn't pried further; she wasn't sure if she'd be noticed; she wasn't sure if offending would get her kicked out, and regardless of whether it was actually safe it was safer than anywhere else she'd been for the past...three years?) so she couldn't be sure this place wasn't really a trap of some kind, but the higher layers gave a plausible explanation that didn't involve being a trap, and whatever else it was warm and dry and had food. Her guard was probably a full 25% down. Positively trusting, these days.
"...She couldn't let herself believe me if she didn't have a look for herself. I don't actually mind having my mind read in principle, so I let her. She's currently trying to reconcile I've been being willfully blind for the past three years with and this led me to do terrible things with and collapsing into a heap of self-loathing and/or suicide is the opposite of helpful," Cerebella murmurs. "...I'm so, so, tempted to just--blame everything she did on the people who hurt her, but it doesn't work like that, does it." She shivers. "I just hate to think--that I could have ended up like that. I wouldn't," she whispers fiercely to herself. "I wouldn't do that. Not me. Not now."
"...I have the most ridiculous urge to apologize for being the kind of person who's theoretically capable of turning out like that."
"Yeah. I'm really glad you already had a way of protecting yourself before you met here."
"...What do you think we should do with her? I imagine she's not going to leave Milliways until she's come up with something better than what she previously had, but...even if she was handling it badly, I'm still not comfortable just throwing her back into whatever broke her."
"I don't know. I don't think I dare leave through somebody else's door myself, considering, or I might help if it seemed like something I could manage..."
"If she stabilizes enough to get a good read on and the read is promising sending her through my door like we did with you might be a good idea. There isn't even an enraged supervillain on the other side this time."
"Yeah. And if that works and she needs a lot of oomph I could get her an evil furball, although it's anyone's guess if she'd get the spell to sustain herself in my cheaty fashion without witches..."
"Depending on how long you're interested in staying to help she could probably get it before it would be a problem that she didn't have it even if she didn't get it to start. ...Although...maybe it would be a good idea to chuck her through my door now, if she agrees to it. Take advantage of the personal achievement boosts from figuring out how to put herself back together." She nibbles her lip. "It's a gamble, if it turns out she puts herself back together badly and then she has this power, but it could have a high payoff if it worked out."
"Yeah...I mean, it's unlikely that she's going to come out of this doing something worse than what she was already doing. I, uh," she winces. "I got a look at what she could do when she checked my sincerity. She...was actually showing nonzero restraint. Not that this excuses what she did, but..."
"Short version is that her mindreading can be pretty selective and she was mostly refraining from touching anything that she didn't feel she absolutely needed to."
"I'm not really sure how to explain it. Basically, um...intentions? Motivations? What do you want to do in relation to me and mine and why. That's not quite comprehensively it, but that's most of it."
"...Okay," Cerebella murmurs to Bella after a bit, "so, she's less, um, repentant than I had guessed, possibly to preserve what's left of her sanity, but she's perfectly willing to never do that again if I make her my kind of magical girl because if she works hard and manages to come up with a resurrection spell it is theoretically okay for anything to be okay ever again, basically. Also that kind of communication felt a little like the fluff's, but more...comprehensive."
"In terms of...sensation? Like how if you stick your hand in a bucket of water and then you stick your hand in a bucket of, I dunno, milkshake, it's really different but also there's a unifying feature of wet?"