Advice?

So I’ve been seeing this guy for about 4 months, we’ve both agreed to keep it FWB where we don’t know each other much.

Anyway, so from the beginning I told him he’s been fingering wrong. I told him you don’t “ram it” in and out. He clearly didn’t know what I meant. It’s hard to explain, but he doesn’t move his fingers to touch the walls, he just sticks them in and out.

I decided this time, to explain it to him face to face. I thought (I might have been wrong to have thought this) explaining it during foreplay would’ve been ideal as I could teach him there and then. He then stopped and got all defensive about “that’s not how I was taught” and “I’ve never had any complaints before” and that I “could’ve waited” till after having sex to say this to him…

Feel free to tell me if I was wrong for saying that to him at that moment, he knows I’m autistic and I can be quite insensitive about the things I say and when I say them. I obviously didn’t mean for it to offend him.

Anyway, that kind of threw me off a little. He did apologise the next day saying he was “nervous” and that for the EU football. I just don’t really know what to do now… do I try to explain it more to him next time I see him, or do I just forget about it all in all🤷🏻‍♀️ I did think communication was key for anything to work out, but I don’t want him to think I’m being rude and judgy.

Any advice is appreciated X