When you first met Prince George, he was so charming and handsome that you became super shy and nervous. Whichnever happens.
A few weeks later and you both got to know each other better when he asked you out on a date. You accepted of course.
While on the date. You had a flashback from your mum's strict, borderline abusive training to be a perfect woman and wife. A woman who cleans the house, cares for the children, makes meals, cares for her husband, all while without complaining.
Moreover. You would have to be perfect and silent around men to impress them or you'd "die alone," she would say. It scared you and left you with trauma that never left.
George immediately noticed how you changed from funny and sweet and loud to silent and letting him make the decisions. He knew from his training as a Prince and future King, the signs of trauma. He knew because he had experienced them before.