First, it is great that you had scaped a bad relationship. It is a very difficult step to take and i hope that now everything works great for you.
Now, it is your time to became the woman you want to be. I understand you completely i am getting out of a difficult situation also, and with 20 kg (like 44 pounds) above how i started. This man could help you get over your past difficulties. Theres an old mexican saying that preaches "a nail can remove another nail"
Be sincere with him, use recent pictures on FB, do not lie to him so he can be sincere too.