Sorry, I haven't read the whole thread but just wanted to chip in.
My EXH slept with prostitutes over the course of our marriage. The first one I knew about was 6 weeks before our marriage. His reason - one last fling!
Didn't stop him though, he continued to do it. Doesn't hate women, supposedly didn't hate me, but all the excuses came out of me not wanting sex enough, him feeling depressed, I was away etc etc. He'd never go to a local one though, always one 20 or 30 miles away, maybe through fear of being seen???
He slept with one prostitute the day after we split up. Wasn't my business but he'd had the cheek to use my iPad and Sat Nav! I'd stripped the bed after I found out and he asked me why as I'd only changed them two days before. I told him I knew and that I thought it was disgusting and that I wasn't going to sleep in a bed with the scent of the woman he'd slept with. (He didn't shower when he came home after doing the deed). His response, a honest one, was, I'm not going to lie, I enjoyed it.
I'm not sure it's relevant but his dad cheated on his mum.
From my perspective EXH saw/sees women as objects and it's the act and never the emotion behind it. It's a fantasy, release, easy lay etc without any strings attached. He was also an avid porn watching and often the perverse kind.