I totally understand what your going through, i have been over weight all my life i've tried losing the weight on my own but, gained all the weight back. I only told 1 of my friends about me getting the band and she supported me in it. If i where you i would sit down with that friend and tell him everything the band is suppose to do, and if he still can't support you then most likely he is not a good friend if he can't support you in something that you think is best for you !