BEFORE you went vegetarian/vegan, did you ever dislike or disrespect OTHER vegetarians/vegans you encountered?

I never disliked a vegetarian or vegan before I became, but I have after. And it has absolutely nothing to do with me being jealous, guilty, uninformed or ignorant. I don't believe most people wouldn't like a vegetarian or vegan because of these reasons I think they wouldn't like them because they had a better-than-you attitude which is why I have disliked some. They have thought they were better than others for being a vegetarian for like a week and then in the end they became meat eaters again.