He was actually unaware of the whole situation until he was back on the boat after the dive (as was everyone else). He was buddied up with someone else and realized about halfway through the dive that I was no longer in the water, but under the circumstances (shallow dive, no current) he had no concerns...he actually thought that the other guy had run out of air before me and we had surfaced. When he got back on the boat and heard the other guy telling his story, he came over and I filled him in. My husband is 6' 5" and weighs about 230lbs. Believe me...I had a hard time restraining him. The one good thing that did come out of all of this is now he realizes why I don't tell people I'm a DM when I'm diving and I don't think he will ever again.