Always for no apparent reason

Arranging to meet up to have sex and seeing your confirmation messages ignored. When it seemed everything was fine, when the first date had gone really well and you had seemed compatible and hot for each other, ready for more fun, promises of kinky, rough yet sweet sex. Then nothing. It's happened to me several times in the past and each time I wondered if I did something wrong or said something more than I should have, tortured myself re-reading messages trying to read them from a male's perspective and finding nothing bad. All about either general stuff when asked and sex, nothing more, no accidental uncomfortable feelings involved. Then why? The proverbial "he's not that into you" comes to mind. But this is sex we are talking about, not more. So why? Why disappear without a reason, any reason instead of having lots of fun together? I hope this doesn't happen to me again. Plain upsetting. Mood killing. Frustrating. For someone like me with such a big appetite and noone to satisfy it at least once a week, let alone every day I am in the mood, it's sheer torture to get teased and promised sex and then disappear. And I am not a fan of this kind of torture. This is the kind that gets me frustrated and angry. I'm a very understanding person, give me a good reason for not wanting me and I won't bat an eyelid, but with no reason...