I’ve always been a stutterer, and I feel you. Trying to explain the difficulties and emotional burden of having a stutter is like trying to explain rocket science to a group of toddlers. It’s not understood and is brushed off as a small problem. As for your friend, it’s hard to differentiate between peoples lives because we don’t live them. And it was rude of him (or anyone for that matter) to just outright say something like that. Keep your head held high and try not to let other people’s uneducated opinions influence your life😊