Or maybe he just wasn't in the mood? Despite the tropes, men don't want sex ALL the time, and just like women don't want to be responsible for the feelings of men, we don't want to always be responsible for quelling the insecurities of women. This doesn't even have to be a gendered thing. No one wants to be the only source of validation for their partner. Often we hope they are on some level emotionally mature and self assured.

OP was doing the person equivalent of a cat walking across your keyboard because you were typing instead of petting.