My feelings about BDSM seem to have completely reversed in the last week. I'd say it's surprising but isn't the angry repressed person almost a caricature at this point?

I literally feel like something gave way, like I found the piece I was missing.
I must admit I find myself daydreaming about a relationship similar to the one the OP described. One serious difference: I would need someone who could be sexual in the DD role, not just the sadistic one. The whole sudden appeal of BDSM is that it might let me rewrite the lessons from childhood. We're all taught as kids that our desires are shameful and must be inhibited, that the private places on our bodies must stay hidden. In BDSM, our desires are beautiful and sexy to our new caregivers, our bodies, our shy, blushing responses, make them love us even more. The idea of sexual tenderness and acceptance from a D male excites me lots.
The sadistic piece appeals to me too, but also frightens me. I can imagine feeling a very dark pleasure in being painfully used by a loving caregiver, who somehow loves me and loves hurting me at the same time, who hurts me while encouraging and praising me, who perversely cares tenderly for me after. At the same time, I could see it being scary and difficult emotionally, esp. in a vulnerable LG place. Why are evil things so arousing?

Valar did you ever run into an issue where she went cold and remote after a sadistic scene, uncertain of your love, distrustful?