I, too, am very sorry you had to endure that. I hope one day you will also find the confidence to speak up for yourself with your friends and others to not allow anyone to speak to you that way either. It is very hard to find that voice and courage for many of us that have wanted to be "hidden" for so many years.
You did great yesterday w/ not eating or drinking the junk and for that you should be very proud. Food doesn't have to control your life anymore, YOU do and you being strong like that is proving you can and ARE doing this!!
Just try not to internalize the rudeness of others and insensitivity of others. Bottling those feelings of hurt are often what led us to such poor self images and turning to food for comfort.
Have a great day!