What would you do if your SO revealed that she/he was very much into BDSM and kept asking you to hit her/him [to the point of bruising]?
That is not the way BDSM works... and that is not how a person who is into BDSM would have a new SO. The whole idea is to communicate it in order to make such a relationship work. And it isn't a beat me or perish thing.
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