he said because we are a very sexual couple and his friends know this
WTactualF?
WHY do his friends "know this"?
It's nobody's business but yours & his.
This is such a disrespectful non-excuse, it makes the original behaviour worse, not better.
he didn’t think it would be a problem
Oh come on OP.
Of course he knew it would be a problem.
Funny how he's never tried it when you were sober enough to object, innit?
As to he’s amazing in every way - so are most people, 2 months into a new relationship. Take the bloody blinkers off, & see him as he really is:
Then also his story changed ... I am really confused
He's a liar, a manipulator, & has committed a sexual offence against you which he is now minimising & backtracking from.
Of course you feel confused - you have cognitive dissonance because you are trying to reconcile how this person can be an "amazing guy" AND a sexual predator who used your vulnerability when drunk to exploit & abuse you ... while laughing with his watching friends.
So you are dating a man who has a NON-CONSENSUAL video of you giving him head. You know how much further damage he could do with that, yes?
At the very least, you need an apology, & to see him delete that footage. Once you have that, if you don't dump him, prepare yourself to be continually humiliated & laughed at by this 'amazing guy' & his lowlife friends.
I am sorry this happened to you OP - & it is absolutely not your fault.

But now you know exactly what he is, if you don't dump him as soon as you've seen that video deleted (& I am sorry but it could already be copied, or circulating), you will be complicit in your own further misfortune.
This man is an abusive arsehole who believes your body & your privacy & dignity are his to exploit.