I'm so sorry, Evenstar, my heart goes out to you, and to your family.
Your DS is selfish and inconsiderate because he's a teenager, but they do grow out of it (and it's about time he did). He'll also be feeling the pressure to grow up and "be a man", he'll be fearful of failure and maybe resentful that he's taking on responsibility when so many of his contemporaries are gleefully putting that off a few years - or that's how gap-years and college/uni might look to him, especially when his job has such long hours.
I understand how you feel about the bureau, but you've also had your DS in your home for many years and treasured him, and he (and his sibs) carries the real inheritance from your DH and his grandad.
Sit down calmly with him tonight, explain how you feel, even cry a little. Show him that you're human too, and can't do it alone. Show him how much you need his support. Your relationship is no longer mother and dependent son, but two adults sharing living space, and you need to re-negotiate on that basis.
I'm afraid I'm going to be away from home and computer for a couple of days, but I'll be back some time Friday. I'll be thinking about you, and hoping you can reach a resolution.