ive been bi for years and i meet this girl i really liked and we were best friends for a few years and then i found out she was bi too so i thought i would tell her that i am too and she would have been the first person i would have told and so when i did tell her she started pushing herself on me and overwhelming me with doing stuff with her and touching me and making a big deal out of it and she went and told almost everyone she knew that i was bi and after that i don't know how to react around her and she stops me from having relationships with other people guy or girl and she even made my girlfriend break up with me so i would be available for her
How can your friend have so much power as to make all that happen? You need to push back. Find your power and stand up to her. Be forthright about what your exact feeling are toward her and how you expect her to act if she plans on being in your life anymore.