I can help you with this since I struggled with this but overcame it for the most part now. Just remember you are more then your stutter. You are not others judgement on you. Sure it may suck every now and then but we're better then this. Don't let these petty problems get to you or hurt you. You only react negatively cause your scared of what your frienda will think of you. Let go of that. At the end of the day that's out of your control. You can't change what's outside of your control. All you have is yourself inside of you that you CAN change.