Counter-transference is the T's emotional stuff. A Therapist is supposed to be able to recognize this when it happens and keep it out, use it for information about what's going on but not to act on it. If they aren't good at this, they may act on their emotions, such as guiding the conversation example. However this entirely depends on what type of therapy your T practices. If it is one of the behavioral methods CBT, DBT, etc. then there is intentional guidance in the therapy and there is an outline and model to follow. If it is psycho-dynamic, humanistic, or good old psychotherapy than it is client centered guidance, as the principle is that the client knows where to go.

In brief, transference is feelings a client has for the therapist. Generally feelings that are projected onto the therapist and is a pattern from previous relationships, most especially childhood relationships. A big part of psychotherapy is recognizing them and resolving them so the client can stop projecting these things on others and have better relationships. Counter-transference is the same thing, but on the T's side. They should have already worked out their stuff by having therapy themselves, but sometimes things need more work.