Cum on!!!

My husband doesn't cum from blow jobs but I still usually start with that and then he usually gets me off with oral and then we have sex and he will cum. Sometimes it'll be like super quick and he cums in a couple mins (especially when we haven't had sex in more than 4 days ). Other times he lasts much longer which is fine. But I recently had a yeast infection so obviously we held off on the sex. And before that was the weekend where we had been drinking so didn't even attempt to have sex (whiskey dick) lol It's been like over a week that we haven't had sex and then two days ago we had sex but he couldn't cum. We figured it was just cuz he had a condom on (not on BC not TTC) and he wanted to cum in me. Then yesterday we did it without a condom and he was just gonna pull out. We went at it for forever and still nothing. This has happened a couple of times. And I don't understand why. I ask if he  helps himself out but he said no. And there is no stress. He's military so drugs aren't an issue and I'm home all the time so he's not drinking when I don't know about it. Idk what else could be the issue. Is he bored? Am I boring? Am I just not as appealing anymore? What's happening? 😞