Was I wrong?

Me and my guy friend used to be together but now we are friends with benefits. So today we had protected sex and he actually came. I say that cus we’ve had sex with each other for months and he’s only got there 2 times. He has an issue with cumming. One time we did it raw and he came and we got plan B ASAP. This time we didn’t and I was surprised. When he said he came i felt to check and he thought I was going to do something with the condom strange. I just took it off for him and tied it. I wanted to go again so I was stroking him, he was worried that if I touched myself with that hand(left) that the semen would still get me pregnant. I told him I don’t use that hand for that I’m a righty. And that’s not how Sperm works. I honestly thought he was joking because he didn’t sound serious and I thought he knew enough about how a woman would be able to get pregnant. Well I must’ve upset him, I told him that the sperm were dying, 1st search said the air would kill then but the other said they sidle when they dry so there was no chance of my getting pregnant that way. But I told him fine and jokingly wiped my hand on his shirt, which was dry by the time I realized he didn’t want to do it anymore. He got mad and said I was insensitive to his anxieties even though I kept telling him that’s not how sperm works. He told me to STFU when I told him about more reliable sources hoping to ease his mind. We didn’t talk whole drive and he didn’t say goodnight or goodbye. I’m pissed and hurt but idk what to say or do.