So sorry your holiday has been so awful Kate. On the plus side, I expect it made just relaxing at home feel like a holiday! Perhaps you can have a short break with your husband later in the year to make up for it.
Speaking for myself, I find holidays can be quite stressful anyway. It is quite a big expense and there is so much pressure to enjoy yourself. Sometimes the anticipation is better than the actuality.
I have had many holidays that have been stressful. After my dad died, mum came on holiday with my husband and I every year. On her first holiday abroad, we arrived at a really beautiful hotel in Camp de Mar, Majorca (a last minute deal where we really struck lucky). As soon as mum walked into the really fabulous bedroom with a huge verandah overlooking the sea, she grumbled that there was no kettle/tea bags like there is in English hotels. She also tends to get a bee in her bonnet about something she wants to buy - one year she wanted a fold up fabric shopping bag, another year some linen hankies, another a white "gypsy" skirt, and we had to go traipsing around looking for them. By the time we got back to England our nerves were in shreds (mine particularly as my husband had become increasingly grumpy - understandably).
Being gluttons for punishment, another year we invited both mum (then 83) and her old brother (then 85). I thought it would cheer him up as he had lost his wife and was feeling very down. He is not the most sensitive of characters and mum spent half her time crying about the things that he said to her.
The best holidays we've had have either been just the two of us or with my daughter and grandson/son and partner and grandchildren. Add too many people to the mix and I've found it to be a recipe for disaster.