highdesert, I had the exact same problem with my husband when I was a new diver. I wanted to stay with the guide, for a couple of reasons. One, he knew where we were going (and we usually didn't), and two, he found cool stuff I otherwise missed. But my husband wanted to be at the back of the pack with his camera, and dawdle, and wander off . . . It made me completely crazy, and we had some significant fights about it. They slowly resolved, as I got more confidence and wasn't so worried about staying with the guide every minute, and my husband got into a bit more team-oriented spirit of diving (although we still dive with him setting the pace and course with the camera, for the most part, and me doing the monitoring).
I don't know of any way to resolve the issue quickly or amicably. My husband and I basically didn't dive together, except on trips, for almost six months, until we each evolved a little way toward the other and could buddy up without as much stress.