Ok I can't find the clip but in the sn era she was on the Ellen show and Ellen was asking her about what happens when she and her s/o get into arguments and he's like 'yOu'Re nOt gOnNa wRiTe a sOnG aBoUt tHiS aRe YoU' and she's like 🤨 'yeah? I am?' 

Anyway Joe had it coming because if he doesn't want Taylor to write bad songs about him then he shouldn't do bad things iykyk