Semen Retention!!

So ladies!! My husband does this thing during sex where he stops himself from ejaculating and he just last so long and can go all night. We take little breaks to catch our breath and have some water then get back at it. So last night we went on for hours we both passed out at one point for a few mins a woke up and continued. He still didn’t cum!!! Not until this morning. For me a sign he is satisfied is him cumming so when he doesn’t cum I feel I’ve failed. But he said it’s the opposite, like he’s enjoying himself so much he doesn’t want to come and stopping himself from cumming feels so good and means he can go again and again! Have any of you ladies experienced this? I’m not complaining but sometimes I’d love for him to cum so I know he’s good and we can sleep 😅also how to stay 💦 all night? After I cum my 💦 runs out! He hates lube, likes everything natural so I guess I need to start drinking gallons of water?! 🤷🏾‍♀️😅