Purple, you must be so sad. It's not the dog's fault. It's his for not training his dog out of separation anxiety behavior as well as not thinking to take the quilt off the bed. Too bad it wasn't his guitar or something he made. I think that if he didn't ask you to repair it, don't offer. If he does, say you are sorry but you just hate to repair so must say no because you are currently so busy with new projects. If he wants a new quilt, you can say you'll think about it ...but then, secretly start planning one for his next big occasion ie 40th BD! It will be a happy project. After such a long wait, when you present it to him at his party, he will be surprised and humbled and so grateful, he will treat it with much more care.
That's what I quickly thought up without even knowing you and I realize it may not be the advise best suited for you.