We can only speculate why, but physically abusive parents seem to share certain characteristics. First, they have an appalling lack of impulse control.

When your lover is a liar, you and he have a lot in common, you're both lying to you!

Reality Check
His lying is not contigent on who you are or what you do. His lying is not your fault. Lying is his choice and his problem, and if he makes that choice with you, he will make it with any other woman he’s with. That doesn’t mean you’re an angel and he’s the devil. It does mean that if he doesn’t like certain things about you, he has many ways to address them besides lying. If there are sexual problems between you, there are many resources available to help you. Nothing can change until you hold him responsible and accountable for lying and stop blaming yourself.

The lies we tell ourselves to keep from seeing the truth about our lovers don’t feel like lies. They feel comfortable, familiar, and true. We repeat them like a mantra and cling to them like security blankets, hoping to calm ourselves and regain our sense that the world works the way we believe it ought to.
Self-lies are false friends we look to for comfort and protection—and for a short time they may make us feel better. But we can only keep the truth at bay for so long. Our self-lies can’t erase his lies, and as we’ll see, the longer we try to pretend they can, the more we deepen the hurt.

I estimate the number [of incest victims] to be somewhere between ten and twenty million Americans...

[The incestuous father...] may be unconsciously seeking revenge against either his wife or his mother for what he considers a variety of emotional crimes against him.

My father never did any of the things that my friends’ fathers did with them. We never tossed a football around or even watched games together. He would always say, “I don’t have time—maybe later,” but he always had time to sit around and get drunk.