I'm sorry you had this experience-especially grom a friend. For me,it hurts more from friends and family than ignorant strangers. I would be mad ,too-she knows you/mental illness,she works with MI pts,has a social work degree!come on! I do think she is jealous and cannot see beyond a label.
I have dated people in my life-those that are supposdly normal/healthy,etc-some/not all -were more judgemental/concerned about themselves/how it looks if they are not dating one of the perfet people/insensitive.
I have found that the -not perfect people-in my life -are more caring/compassionate/understanding. I do know some regular people who are awesome,too