Hey guys I (f35) need some advice. My SIL (20s) is deaf but can read lips really well; this is important to the story. Over the last year or so when I've been around my SIL, I've noticed that if I try to talk to her, she will look away when I am mid or start of a sentence, and she has this disinterested look on her face. Sometimes I would stop speaking when I'd notice, but eventually I got a little petty and frustrated and would keep speaking anyway.

If she was looking to my sister (her wife, 30s, who knows sign language) to translate as she does sometimes, that would be fine. But she doesn't do that. She just looks away. Eventually I got fed up with it.

She visited last week and she was chatting with my parents. I said hi and she looked away, and she never responded. The entire time she was there, she never spoke to me. As soon as she failed to say hi, I ignored her. I ignored her the entire time. I wasn't rude, just didn't say anything or contribute to the conversation. I even stopped myself when I was about to say something to contribute to the conversation. If she noticed, she didn't react. I never spoke to her or looked at her the whole time she visited.

In the past I made sure to articulate well and be where she could see me when I'm talking in the group.

So guys, WIBTA if I continue to ignore my SIL?

Edited to add: She never does this with anyone else in my family and seems to understand others fine when they speak. One of my sisters signs with her sometimes when she talks at the same time. I will work on my sign language and see if that helps, and I'll reach out via text and see if I've offended her somehow and do what I can to improve our relationship. Thank you everyone who has commented, I really appreciate it!

Update: I talked with her, and it turns out I am not articulating well enough for her. I will be learning sign language to communicate with her better. Thanks everyone for the comments.