Is this rape?

I have sexual partner who is a real neanderthal, sexist, alpha male and aggressive "LAD" type, and occasionally we have sex as he likes submissive girls. I thought outside of the sex he was really my friend and we both knew that him "using" me as sexual object was just a bit of roleplay that took place because we both enjoyed it and I consented. However one week ago he came round to my halls straight from football, he was mad because he lost, I told him to get a shower first before we did anything, but he insisted "I'd loved it" and continued to assert his "dominance" until I gave in, I was in the mood at the time so I obliged. But now he has taken me accepting this behaviour once to thinking he can treat me like an object and some kind of 50's housewife, for instance harmless stuff like slapping my behind in front of his friends to "show off". However the behaviour went from this slightly disrespectful stuff to something more scary, he tried to insert his fingers in my jeans at dinner in front of his friends, he said that it was because "we were playing footsie", and the last time I saw him I gave him oral and he held my head down whilst he ejaculated which he knows I don't like. Is this against the law? Or is this just "normal lad" behaviour?

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