OP if you feel he is abusive then I don't know that counselling would work. Maybe he needs some to work out why he is unhappy.
"I think perhaps he just doesn’t really like me much anymore and has got used to speaking to me like that. When he claims he didn’t say the hurtful thing it could be because he doesn’t think I’m worth considering in how he speaks to me."
This could be how he sees it. Or he know he is being rude and just doesn't care
"But he does keep accusing me of lying and earlier, when I was talking to him about it, he was laughing at me in a ‘point scorey’ Kind of way. I kept calm, but I was upset, crying a bit and he just doesn’t show that he cares." Sorry it sounds awful.
"If any of you are rowing with your partner and you get obviously upset, do they care?"
My dh does care but he does find showing it very hard. He is not naturally touchy feelie and I am very touchy feelie.
We have been together a long while and it has got better. But I have really had to show him what i expect! I am upset, I expect a hug, or a kiss or an arm around my shoulder etc.
"My DH ignores it and I am reduced to begging for affection. I find that humiliating and very upsetting." I don't blame you.
"I’ve just got no idea what’s normal or ‘good enough’."
I would say that some men find it difficult to deal with emotions (some women too, but less so in my experience.)
However, if you married someone from a different culture you would expect them to try your food, maybe learn your language etc and vice versa. You would not expect them to just say, well this is how we do things in my culture! And nothing from our culture.
So if you express things differently, he needs to know you will interpret things in a certain way. If he loves you and wants to make things work he will be willing to put in the effort. My dh and I have had some counselling when things were rough over fertility issues. I know it was not his favourite thing to do, but he did it to make things work better for us.
Your dh needs to show you he understands your concerns. By saying you are gaslighting yourself he is basically saying 'I don't care if you feel upset, as long as you do not try to pin it on me!'