this happened to me years ago. my first therapist dumped me one night out of nowhere- no warning, no signs, and after hundreds of promises to never abandon me. i went one night, she told me that she was just done. i dont even know what i did. she never explained. and it broke my heart and took me years and years to recover from.
it took me years to trust even slightly. i still rarely trust anyone even a tiny bit. i still feel abandoned, hurt, angry, scared, and sad.