I just found out that my sister in law (my husband's twin and the only sister who likes me) just had…

I just found out that my sister in law (my husband's twin and the only sister who likes me) just had a miscarriage and the whole family knew about it but us. I feel so bad for her. I'm the only other one who's gone through it so I wish they would have told us. my husband's pretty pissed that no one told him. I'm secretly hoping he starts tearing into them because of how awful they treat me but at the same time I kind of really just don't care anymore. but I feel terrible for her :( it's sad