I'm playing the villain, baby, just like you want

He asked me when I fell in love with him and I knew it sounded dramatic to say the moment I saw him, so I told him this story of my grandma who had Alzheimer's- she forgot her name and the words for fruit and food, she forgot her address and how to use the washroom, all her life lost to the disease. The only thing she remembered was her son's name and when that began to fade, the one thing she always remembered was that she loved him, even in illness, even in insanity. She saw this 6 foot 2 man with a scrubby beard and she didn't know him but she said she trusted him, she asked him to hold her hand when she died. When does memory end and love begin? All I know is- she loved him before she remembered him.