I have asperger's syndrome and am obsessed with my friend. how do i stop?

See a professional : Aspergers syndrome is associated with symptoms like likeness of sameness, and fixation on certain hobbies, interests or even people. There are many programs with good specialist in the field in almost every state/major city in the country. Please seek advice at one of these clinics and I am sure you will find the right help and therapy. Good luck and feel better.