Ok well I can't remember much but it sounded like war of the roses in my subconscious but I know that's not it as I watched it on a re-recordable vhs as a child, but basically it was some sort of apocalyptic wasteland and this girl was going to end up having sex with this pirate looking man/machine guy?? He was quite disfigured as well, I really can't remember the title but it must have been an 80's or 90's movie, anyone know it??

I have to admit that these are wild guesses, but both feature cyborg villains, the first more-deformed than the other as I recall.:

Metalstorm: The Destruction of Jared-Syn (1983)
You can read the plot summary here: Metalstorm: The Destruction of Jared-Syn - Wikipedia, the free encyclopedia

Spacehunter: Adventures in the Forbidden Zone (1983)
You can read the plot summary here: Spacehunter: Adventures in the Forbidden Zone - Wikipedia, the free encyclopedia