Maybe not.
My wife was molested by her father starting at the age of ten years old. I knew this early on in our relationship but the way she acted and treated me I was convinced she had found a way to heal and find a way to make her life better.
Her treatment of me changed on our wedding day and it took me a long time to figure out what the definition of a Sociopath was and that it fit her perfectly.
I was not the roll over and sleep type and tried literally hundreds of things to make the physical portion of our marriage great for her. Nothing worked because she did not want it to work. She had sex with me just enough that it kept me around, although very frustrated, and thus she had my job and income to brag about. That was important to her as she never, and still has problems with how she perceives herself.
Her treatment of me changed on our wedding day and it took me a long time to figure out what the definition of a Sociopath was and that it fit her perfectly.
If she fits the definition of sociopath, then the story about her dad is most likely a lie. A sociopath will say whatever she needs to say in order to manipulate people, with no regard for the truth.