Indigo, I have a similiar story and I had an excellent response from Princess.
I waited until I was 40 years old until I married, and when I did, I married the love of my life. 6 weeks later, my husband had a stroke and died. We were supposed to go to the Eastern Caribbean on Princess. Princess canceled the reservation and returned the money in full without me even asking. I am sorry you had such a terrible experience, but it doesnt always work out that way.