Thanks for all the support everyone!
MauiGirl, our Dublin part of the trip is just the last 3 nights. Scott thought about just scrapping the whole thing, but we already have day trips booked from there, and flights booked to and from, with no cancellation insurance.
Ttwlcd, we did look at B&B's but they are also expensive! We do want to be in city centre, walking distance to things we want to see. I know the public transportation is good, but I think it would stress me out more trying to figure out where to go. We can't be late for our day trips, and one of them starts I think around 6:30 a.m. It would be easier I think to walk!
Celstu1, you're right, it won't ruin us. It just sucks! Lol. I had planned to go to Europe on my own and have saved for a couple of years, so it is a lot easier financially to have Scott coming with me now. I can cover the cost of another room, although it will take away from the shopping in Italy and France!
LunasMomma and 107barney, I just told Scott maybe it's worth a shot, but I don't know if much can come from it. We agreed to the terms and conditions on Priceline, and I think that's pretty binding. As soon as we book the hotel, the card is charged and the hotel has the money. It's not just like a normal booking through the hotel. I think if we were to change dates, we'd have to pay full price (over $250 per night... we originally paid just $85 per night)
Thanks for the link! I'll check out our other hotels

It's too late to do much though! Most of our trip is on a bus tour, and we have no say over those hotels. Maybe I don't want to know!