Yes, if there is anything normal with MLC it's confusion. In the beginning my h swung around like a pendulum. I started researching brain tumors and somehow stumbled on MLC. Anyway, she may even say the most outlandish things and then not even remember what she has said. This is why we say don't believe anything they say and only 50% of what you see.
As for encouraging her to talk, sure, you can do that so long as you can just listen, not try to reason with her and take everything she says with an iceberg sized grain of salt. She will be bouncing for quite some time as she tries to figure things out. Whatever she says is just a flash of what she's thinking in that moment. It's very similar to talking with a teenager.
Anchor yourself though because if you focus on her you'll bounce right along with her. Focus on you and your family. Welcome to a supportive group.
Me 41, H 47, M 15 yrs, S11, S13 BD 1: 11/4/14 we work on it; really I pretzel myself BD 2: 3/31/15 H goes down to "dorm room" 8/15: H back to MBR 10/15: H back in dorm room 1/18: H files, now divorced
