Was it that he couldn't release, even though he wanted to and was trying? (that's how I read it)
If so, I'd suggest not even worrying about or trying for climax. Just have fun for XX amount of minutes, (yes, agree on a time) and then it's clothes back on, do something else time. Rest, repeat later or the next day.
Of course he should drop all MB.
After several sessions like this, I think things will start to pop naturally.
And yes, good job!
Good advice
Is it possible you both have unrealistic EXPECTATIONS?
I kind of like to lead my life with NO EXPECTATIONS.
Gosh it really sounds like you performed like a rockstar, I also think that as we get older our hormones dont perform as well as when we were younger, this is perfectly natural and needs to be accepted by all.