Yes you do. Very soon their gluttony is going to catch up to them and they're going to balloon, and in their fat-addled brains, they won't be able to understand that they got fat because of their shitty lifestyle. Instead they're going to get extremely jealous of you for staying thin, and either start trying to drag you down to their level, or they'll start spouting a bunch of bullshit to put you down ("real womyn have curvz" or "only dogz like bonez" etc.) Femayos are incredibly toxic towards human women because we're a threat to them. No matter how beautiful they tell themselves they are, shitladies will always shatter that delusion by the simple virtue of being thin. They falsely believe that we're somehow cheating to maintain our figures, usually accusing us of an eating disorder. Try joining a sports team or a running or cycling club to meet new, like-minded people.