Looks like your husband and Gordon are at the same point of recovery and are pretty much in the same boat. No appetite, taste is all wonky, no saliva. The gagging has finally let up, thank goodness.
I now refer to dinnertime as "mealtime misery". It takes him forever (maybe an hour) to get down his dinner and he curls his lip at the idea of sauces and gravies. He seems to do better with cereal/fortified milk/blueberries in the a.m. The rest of the day is a terrible struggle with food. I keep pushing the milkshakes (fortified milk/3 TB whey protein powder/1 1/2 Boosts/2 scoops of ice-cream, lactose-free and no sugar added) because they have 750 calories each; he's managing to get two of them down a day. He's not gaining any weight, but at least is holding his own.
So keep up with the liquid supplement and maybe try adding some stuff into it. Good that your spouse has gained a few pounds - certainly a step in the right direction. Best of luck!
Anne