I'm sorry to hear about your loss. But, that's for the best. It shows you the true character of your ex-boyfriend. Men like that would leave their wife of 30 years to be with someone younger. Or thinner. Or whatever. You did the right thing, kicking him to the curb.
I'm just sorry to hear that you got hurt in the process. Please keep in mind that you can always lose the weight, but he will always have this personality trait.
I apologize for trashing your ex-boyfriend. This kind of thing peeves me, as I have had personal experience in this situation- I was in your shoes at one point in the past. I let her go, but it was the best thing that happened to me. I am now married to a very wonderful woman and we have 2 young boys together.
And best of all? I'm losing the weight now. Imagine what that girl would have thought if she saw me at the end of my weight loss journey? Maybe this is just the motivation that you needed- Not for him, but for yourself, for your health and soul. If he sees you after you've lost the weight, tell him to hit the road, and that he should have thought about that a while ago.
I'd like to mention that my wife was concerned about my weight, not because I was fat, but because I gained weight fast during our marriage. (80 lbs or so) But, she never ever said that the "appearance" bothered her. She was worried about me being around for our children, and for me to be there for her as well. Now, that's sincere love.
Best wishes in all that you do.
Sincerely,
George