Hello

Consider that the person who felt it necessary to make negative comments about your looks has a serious problem.  As someone else said, we each have our own perception of  beauty etc.  Your girlfriend was attracted to you.  Why?   Explore this with her.   It’s far more important to have an attractive personality.  That comes from within.  Being kind, loving, loyal, humorous, thoughtful are far more important qualities to me in a partner than ‘ideal’ looks.  Sharing the same values is also important in maintaining a close and strong bond.  Don’t give up on love just because someone made a cruel comment.