you and katherine have always been really close, so when you started dating her friends, that she considered family didnt notice. jane seymour, her mom, recently noticed how clingy shes been to you and decided to observe your interactions. once she had done this, she was almost certain you two were dating.

katherine and you are laying in her bed, almost asleep, cuddling. its a very calm situation until jane walks in and sees you two being all lovey dovey and shit.