My brother's wife doesn't like us?

My brother wife ever since they gotten married has given us the cold shoulder. They live in my parents house and my brother wife doesn't want us over when she is there. I went a few days ago and she ran to her room like she was avoiding me. For that matter I just don't talk to her and just in and out of the house. Her children don't even talk to me at all. I guess she told them something about me so they never talk just play on their tablets or Switch handheld. My mom has taken care of her children and bought them gifts even breakfast at times. Though the mom just turns her head around like she wants nothing to do with us.

My brother's wife doesn't like us?
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