Why Do Most Women Think, their past (i.e their sexual history) doesn’t/shouldnt matter to the man they are currently Dating?

It does matter. My wife had been sexually abused by her older brotger for six years. She suppressed it. A couple years into the marriage after a miscarriage she totally fell apart. Had to be hospitalized. Had to go on antipsychotic medications. Eventually we had a son but psychologists were concerned that she might abuse him so she left us. Yeah, it matters.