First, if you think she is asking a leading question (like the one about your sister) the DBing rule is to deflect it. "That is a good question, but I haven't really considered how I feel about that. I will have to think about it and get back to you later."
When she does just flat out start talking about something, remember validations techniques. "Hmmm, that is interesting, how did that make you feel?" "I can understand why you'd feel that way."
The story about your friend was a nice story. But what was your motivation in telling it? What was your expectation for the effect on your W?
I would continue to not be the initiator of discussions. Remember you are the lighthouse, she comes to you. When she does you are pleasant, upbeat, present. Answer her questions in as few words as possible. And validate anything she says.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018