Alright ladies help me out.

So my husband has never been one big on oral sex for me and honestly its not a huge deal to me but it would be nice every once in a while i could have it if i want it. My husband is literally amazing every other way. So thursday night i asked him if i could have oral sex and it was late and he had to be up super early so he asked if he could do it last night/friday night. I said sure. So last night i was in bed and reminded him because he literally forgets things every 5 mins. I probably jokingly said something about it throughout the night like 5 times but then he just fell asleep and didn't do it. Do you think he just didn't do it on purpose or that he truly forgot?