Like proceeding as though you're heading toward a relationship and then not entering a relationship is not the same as if someone lies about using a condom or lies about their sexual health or lies about being on birth control or whatever else. If they weren't committed to you before you had sex, idk why you would expect they'd magically commit when they don't have to. Nobody is obligated to date you even after they decide they don't want a relationship just because you had sex, it's not 1793

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