I Need To Rant Now, Dont Care If You Are Listening Or Not

Well so many of my negative circle of friends and family members openly and aggressively like to accuse me of being stupid! I haven't done anything but be kind and help them in situations of need. I do not doubt my level of intelligence, as I am self reliant and very self aware. I never asked any of these people for help... Yet they always come to me for answers. Yet, when I give them honest advice they bluntly call me "stupid". I'm sick of it. I am highly self aware. I do admit that I was too kind in the past, but time has taught me that being nice gives of the,"so called stupid signal". How ever anyone who has any emotional intelligence would know that kindness is a gesture of humanity. I'm very articulate and well spoken. I don't want to cut ties with everyone and crawl under a rock. I still believe in goodness but most people in my circle just want to play games and take advantage of my good nature. So lately I have become bitter, which I resisted when I was younger. I am too old for everyone's b.s at this point and I'm losing patience. Am I really stupid? I am starting to think that I really am stupid.