For ~thanxalotl and ~conjured, yes! A sibling or more extended relationship would be rad.
Indecisiveness is a shared curse in char creation, I hear ya. Hmmm. Could definitely do messy exes. Mal’s a bit older than her I’d guess, so there might have been some oddness there from onset. He’s also really dedicated to his work and role as a familiar, so he may have prioritized coven work/politics and his witch over her a few too many times and had it bite him in the ass when she got fed up? One of those “I messed up and get to regret it all the time because she’s RIGHT THERE.” Oh, small towns.