Question for the Men (ladies opinion welcome as well)

I'm wondering how many of you have issues with delayed ejaculation. Or ladies, if your men have this issue.

My boyfriend and I can go at it for over an hour sometimes and he still won't finish. It's gotten better now that we have sex more regularly, but last night we had sex and I jerked him off and nothing came of it. I do different stuff to switch it up and make things sexier, but again, sometimes nothing comes of it. I'll go for a long time, but obviously at some point it's just not going to happen and I don't want him to turn around and watch porn to get off. It wouldn't particularly be a good feeling.

Any suggestions to help him? Or any insight on what was the issue for you and your partner?