Ok, so I recently discovered my (completely out) SO told my sister about me (out to two people, including him). When we first met we discussed it and he told me my being in wouldn't affect us in any way... and he promised to never tell anyone until I was ready. I've also found (through less than honorable means) that he has been messaging my sister/a couple friends and has gone ahead and told them. My friends know him as one of my roommates and, on more than one occasion, asked me why my "insane roommate" wont stop calling them and texting them at 3 in the morning. What would you do? I've lost all trust I had with him and can't honestly see my self staying with someone like this.