I think Lowri 'gets' Chris at present. She has pretty extreme artistic anxiety, she doesn't trust her art the way Porphyria does and although she does write mysteries, she is definitely more political than her siblings. I would probably say she also has a deep desire to impress her parents, or maybe live up t0 the more standard social expectations and is becoming increasingly anxious about her lack of marriage prospects, and while I don't think she will make a stupid decision it's not off the cards for her. Her previous heartbreak is something that she isn't entirely over and trying to match her own expectations, societies expectations and what she thinks her parents expectations are for her.

So lost soul is 100% the right vibe for her! I think she tries to present a cool, calm and collected vibe, like she is fine with her life right now and everything that's going on but isn't and is panicing.

Her mum could be well aware of this and trying to help or oblivious.