Hi there, I also think that you should just talk with him one more time and assure him that this is for you and your health. You said one important statement, the insecure part of you want to back down and do what he says". That is exactly what he expects you to do, be insecure. Do what is best for you so th at you wont have the insecure feeling anymore, you will feel very powerful and stand up for yourself. You want to be around to enjoy your life with his support of without it. I had to explain a few times too even though i had made up my mind when i made up my mind to do it, i just wanted him to know what my plans were. Men do get insecure that when the women lose the weight, that they will be more out going and have more confidence and maybe they will find someone else, so in turn, they want you to stay fat and depend totally on them!NOT!!!!!! DO YOU GIRL!