Performance/nervousness issues

[curious69]

So in one of my previous posts, I explained my situation with my boyfriend, 'Dan', who is -or should I say 'was'- a virgin.
I expressed in my previous post how I was tentative about sleeping with him, due to his lack of experience, and that I didn't want him to get attached and hurt him in some way.
But, I thought about it and overcame my qualms. So, last Saturday, we were heavily making out, and I unbuttoned his pants, he unbuttoned mine, and things just began happening.
At first, everything was going well, he was getting the hang of things, even if he did go a little too slow with the thrusting - I thought the good ol' missionary would be best for his pleasure, which was what I was concerned with the most.
About seven minutes later, he still had not come, which I found very odd for a virgin. That led to me getting on top. At a few minutes later, he went soft. I tried my best to get him hard again, and it worked, and we switched back to missionary again. After an hour, he STILL hadn't come. At this point, I'm feeling kind of bad, so I just go to blowing him. Five minutes later, he still had not come. I needed to leave to pick up my sister from to airport at that point, so we had to stop.
We talked about it -I am trying very hard to keep this a communicative relationship, I find that to be very essential- and he just said I was 'very beautiful, and sexy as hell, and he was so nervous, and he was afraid he did badly'. I assured him he did not and that I just wanted to please him.

I'm not too worried about this, seeing as how it is his first time, but if this does persist in the future, what are your suggestions to overcoming this?