My sister on the phone wit this 17 year old who says he 25 cuhz he got a fake id n my sister who…

My sister on the phone wit this 17 year old who says he 25 cuhz he got a fake id n my sister who suppose to be be my daughters aunt says that she'll kick me in my stomach n then laughs bout that like that shit really funny I been mad ever since n family or not she not finna be my daughters aunt ... Anyone think I should just let that go .. Idk wat to do I'm just mad 😡