Oh, how confusing a session, but it sounds like it was challenging in a good way, too.
My T has said something similar to that "bad marriages" line. It hurt to hear, because it felt like he was saying that though I perceived myself as getting good things out of T, it wasn't true. But I think I was just casting it in the most negative possible light.
Maybe as you notice yourself falling into the "batten down the hatches" mode, you can point it out to him so that together you can work through them more?