Therapist threatened to drop me

I was discharged from inpatient a week ago, and now I’m in outpatient. I’ve been struggling significantly with behaviors, and I lied to my therapist for the first time today. She told me that if I resume behaviors at the same frequency then I will either be forced to step up into inpatient or she will drop me. I’m in my last semester of college so she knows I can’t go back to inpatient during the semester. I’m feeling really conflicted and guilty.