Legendborn

I'm rereading Legendborn and writing my thoughts down on note cards as I go. Sometimes I'll write a whole note card on one thought and then realize "Wait, this actually doesn't make sense, and I think I'm super wrong about this."

Why does the order use the early college program to find squires if they prefer to stay in their circle and get all mad when they pick someone who isn't from a vassal family. (I know there were more factors on why they were mad but the whole I pledged to this family generations ago and now you've taken that opportunity from someone who has been here longer and devoted more also played a part)

Is the whole Bree being able to resist mesmer with pain something that only she can do? Bree did this 3 months after her mother's death and could only do it at will when she realized it was pain helping her resist, so is this something that can be practiced? I'm sure someone would have come across it at some point, so I'm assuming it's just a Bree thing but is there any specific reason why she even can?

I've always rooted for the throuple endgame in Legendborn but thought if that doesn't happen then I'd prefer Bree with Nick but upon rereading the books I realized I highly undervalued Sel