You have every right to feel the way you do, but I think most people here would understand how it's so easy to get attached to our therapists especially if we have trauma or abuse in our histories. No man is an island. We all long to feel connected to others and that's going to happen with anyone we spend time with.Try to go easy on yourself- you took the first step of starting therapy to help yourself and you did the best that you could. Your therapist should have ended things properly.

Do you keep a journal?