Just Last Night

I haven't been in a relationship for years and honestly, I'm okay with that. But last night, everything changed. While watching an erotic movie alone, something inside me snapped when the actress got tied up and blindfolded. It's not like me to get into BDSM, but there it was, staring back at me from the screen, dark and tempting. Afterward, I felt guilty, as if indulging in that fantasy made me somehow less than who I am. But what did I do? Just watched a movie. Why is this bothering me so much?