Guys, why was he so upset?

My friends with benefits and myself have had a bit of a tiff and I’m confused as to where he’s at and why he reacted the way he did. So we chat everyday and he calls me every evening too - today he was in a bit of a mood and I said ‘you didn’t have to ring me if you didn’t want to’ his reply was ‘I know how you get’ as I have asked him a few times lately if everything’s ok as he’s been super busy with work so not talking as frequently through the day.. I responded with ‘OK let’s not talk then if that’s how you feel’ he hung up, sent me a voice note saying he thinks I say things in jest but actually mean them and was almost in tears 🙄 why would anything I say to someone that only wants me for sex upset him?

Guys, why was he so upset?
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