I am supposing that the bone chip is causing you problems, because of where it is? Thousands of ppl have bone chips and leave them there, to dissolve, work themselves out to the skin, or just sit.

Is he sure this is what is causing your pain? Don't they have something to blast it it blithereen nowdays, rather than surgery to remove it?

Your step-dad might do better if he had someone else to think about rather than himself in his misery.

I hope your BF will follow through, and that this goes really well for you.