Being the ‘right twin’ clearly delighted Terry. Having earlier been compared unfavourably to Tony by Livia, here she was with a change of heart, and a heart that seemed to be warming to him. Whilst he kept this to himself, he had always felt undervalued as the minor twin. Tony always seemed to look out for Terry and maybe was oblivious to the inner feelings of his brother, but Terry’s resentment of his twin ran high. A smart woman, Livia realised this... and would use it.
She seized upon post-coital opportunities to fan the flames and heighten Terry’s resentment.