You said it was my mother you loved. But of course Lady Catelyn was dead, so even if she had loved Petyr secretly and given him her maidenhood, it made no matter now.
I have, though, Sansa thought. I am free of Joffrey. I will not have to kiss him, nor give him my maidenhood, nor bear him children. Let Margaery Tyrell have all that, poor girl.