Nothing wrong with you @Thatneedyduck I feel so sorry for you, and I think that quite a number of women have had (or still do have) husbands who are the same (or were...)
For a couple years my DH was like this... (When we were in our late 20s/early 30s... so like about 25 years ago...) I couldn't walk past him without him slapping me on the arse, and I couldn't stand at the sink washing up without him coming up behind me, grabbing my boobs and kneading them like a dough ball, or pinching my nipples, (apparently he thought I'd be hugely turned on.) Was I hell turned on! I found it irritating and stressful. I was like
and then 
He kept telling me to lighten up, and that I should be GRATEFUL that he fancies me. I couldn't walk from the bathroom to the bedroom without getting dressed first (well, putting my underpants and pyjamas on anyway,) because if I was naked, and he was anywhere near me, he would grab me and push me onto the bed for sex. He'd be like 'fucking hell I'm horny!' and just grab me. Thought it was wild and passionate. It fucking wasn't! He wasn't like this for the first 5-6 years we were together, he just went like it all of a sudden. It was so oddl
I did complain and protest a few times, but he went into a sulk, and said 'fucking hell, am I not allowed to touch my own WIFE now?'
And 'God forbid a man is attracted to his own WIFE!' He got on my nerves so much that I started to put my hands on my bum when I walked past him, (with my palms facing outwards) so he couldn't slap my arse. I also (as I said) always got dressed while I was still in the bathroom, so he wouldn't see me naked, so he didn't have the chance to go 'PHWOARRH! and grab me and push me on the bed for sex.' And I started shutting the kitchen door when I was washing up so he couldn't come up behind me and grope my arse and boobs. I found it incredibly repugnant and off-putting, and yes he was a sex pest. He couldn't see it though. As I said, he thought it was a turn on, and exciting, and passionate, despite me telling him I didn't like it.
I started making excuses to not have sex: period, headache, feel sick, any excuse, and it got to the point where we only did it 2-3 times a month. We were only about 29-30. He started to become pissed off. I told him I was not attracted to him like I used to be, as he is a sex pest, demanding sex when he wants it, and groping me, and saying shit like 'no man's wife has such fucking fantastic tits as you!' and 'I love slapping your arse, you've got a fantastic arse!'
For some reason, he thought all of this, along with the groping, arse-slapping, and 'phwoarring' and grabbing me for sex by pushing me down onto the bed or couch, or pulling me on top of him and forcing his tongue down my throat was a turn on. All it did was repulse me.
After a couple of years of this, when he was just getting the cold shoulder from me, he stopped. He finally got it, that I found it repulsive, and was not turned on.
Why the FUCK do some men do this? It's disgusting. If he had not stopped, I would have divorced him.
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