Hi Rae,
Firstly welcome to the boards and congrats to you on getting your OW, such an achievement and the start of an obsession (if that's the right word) to a very expensive hobby.
Even though Aruba must be about 600 odd miles from where I am in St Lucia, I haven't heard what the diving is like down there - hopefully someone else might be able to ***ist.
What's the problem that your husband is having with his ears? Is the problem happening more on the ascent or the descent? Maybe if you give us a bit more info, we could probably come up with a few suggestions he might like to try.
We're a friendly bunch on here, so please feel free to jump right in with any questions/jokes/pictures/ and anything else for that matter