I remember I had an ex just like Kat Slater, same hair, fairly similar looks but sounded just like her. Let me tell you this it was the worst times of my life. I nearly had a nervous breakdown. So glad I got out when I did.
To be fair to Zoe all she wanted was her Mom's affection and support what good was it telling her if they can't do Mother and daughter stuff. Even before she knew Kat was her Mother you could tell she looked up to her.
Kat has not learnt her lesson from her mistakes .she reported her own cousin Hayley to the socail services. Karma came back to her when Janine shopped her to the bill for making threats. This shows when you get people in trouble it will bounce back to you