In addition to what you describe, part of what was happening with me was by the next week rolled around, I also was not trusting some part of the whole thing (T, the process, myself...) and it would take most of the session for me to get to where I'd talk about anything of depth. So part of the increase in sessions was so that I'd still be open to talking to her, still believe that talking to her had value, or that the things I need to talk about were safe to talk about.