Pam spoke up about being a New diver and Brendan being New and she did not want to go to a 100 ft. and I voiced that I DON'T dive to 100 ft. He ignored us. He tried to put his computer on Pam, she is saying "I don't need this. He kept doing it. I was saying she doesn't need it she is going to be with me. (I thought it was an extra computer) I didn't know it was his. We kept telling him we weren't going to a 100ft we were going to hover above them. He said how are you going to do that without a computer? I said I have a depth gauge and a watch I can look at.
Okay, so you two spoke up, and when it came down to it, you were the more experienced diver in your pair/group. It sounds like your explanation about the gauge may also have led the DM to label you as the leader of the 60' party.
We all were in the water. Matthew was the last to get in. From the boat he told us to go down and he would meet us at the bottom. We descended Pam and I to our 60ft with the rest of the group and her and I stayed at that depth.
So, it would be reasonable to expect that the divers were all together when they initially reached the bottom at 100' and that the DM knew how many were in his group at that point?
I pretty much stayed with her focused on her because she was having buoyancy problems the whole dive. When we got to the half way point at 10mins is when Matthew signaled to me there where only 6 dives. Why he picked me I don't know. And where we lost Brendan I don't know. No one knows. Only God and Brendan know, but it was around that point. And speculation is that he was lost somewhere right there because that is where the bottom sloped and went deeper and deeper and the group was making a left turn. Speculation is Brendan got NC and didn't make the turn kept going deeper and deeper, remember I said SPECULATION.
That's pretty reasonable speculation and this is the first I think you've mentioned about the direction of the dive plan. It sounds like you were dropped at a point that was a bit shallower and safely over a hard bottom. Then, the group began working deeper along the bottom until it started to drop off, at which point the plan was to turn left, following the bottom on a parallel that wouldn't take you over the deep drop. From the "follow me" description, it sounds like the DM never specified the plan even as briefly as I just summarized it?
As far as why he signaled to you, I think my comment above explains that. He saw you as the leader of your "group". If Brendan had said something about just wanting to get down to 100' to say he did it, the DM might have believed that he then retreated back up to you at 60' after achieving his goal. Clearly, it should have been obvious that he hadn't done that since there were only two of you. Also, since you two were hovering above, he might have hoped you had seen Brendan ascend if he had done so. Even if you weren't paying careful attention to the group below you, you might have noticed if one diver separated from the pack coming up. By the way, how proximate were the divers to each other in the deeper group? DId they generally stay pretty close, or were they spread out?
Personally, I am still surprised that, if you were paying enough attention to hover above the group, that you didn't occasionally pick out Brendan and your husband from the group, but I wasn't there in those conditions on that day. Were they not wearing anything unique that would have allowed you to identify them, or did you see them periodically, but just miss the point where Brendan separated?
What I have learned from this is that I will never under any circumstances leave my Buddy (husband) to go with a less experienced diver again. And I will advise other divers not to go to a depth that is not within their limits.
If you and your husband are on a dive in the future with another less experienced couple, it still wouldn't be a bad thing for you to split and buddy with the other pair. It depends upon the situation and your goals for the dive. If Brendan had a true buddy of any decent experience level, he might have come back. That said, it can't be your responsibility to take care of other divers on the trip at the expense of not enjoying the dive you guys paid for.
I will make sure there is safety equipment on the boat and I or others know how to use it. I will know how to use the radio and the call numbers of the boat. I will check out a dive shop before I dive with them and make sure they are operating under the laws of that country. I will be responsible for myself and only myself (of course my buddy). I am taking a First aid course to be certified in CPR and 100%02 and AED. I will be prepared for my next dive. I have also learned that SOME DM's are good for nothing other than selling you on your next course. Know who you are diving with!!
Sounds like you're heading in a direction that not only makes you self-sufficient, but also puts you in better position to provide aid to others. No arguing with that.
-bob