So you went against his wishes, to have a healthier happier life and probably live longer without the risks of diabetes, hypertension, joint problems and more. What's the problem eh? The problem is entirely his, and whilst I would be empathetic to the difficulty he is having coming to terms with you making the right choice for you, I would also be making it very clear that he has no right to make you feel guilty about what you have done and that if he can't support you in this decision then it doesn't bode well for the future xx