AITA? SIL Drama

I’ll try to keep this short.

My SIL has been rude and disrespectful to both my husband (her brother) and me throughout our relationship/marriage and has had a hand in putting a sour note to just about every important milestone for us.

The most recent is sending their pregnancy announcement/registry info (for their 2nd baby due 23 months after their first) and addressing it only to my husband rather than our family. He called her and requested that mail be sent to the family, that it was tacky to only send it to him. She went off per usual.

I texted her about it as well I’m tired of the disrespect, bs and drama. Well the response I got back was incredibly rude and disrespectful and included her telling me to leave her alone and lose my number.

For reference, the return address was labeled as “The blank Family” and it was addressed to only my husband. For what it’s worth my parents also got one and theirs was addressed to both of them.

So am I the ass for calling her out on this?

Highlights of prior issues:

-Threatening not to come to our wedding (along with their mother) because she overstepped and extended an invitation to someone that wasn’t invited. It was a whole thing for too long because she couldn’t admit she did something wrong.

-Texting me while I was at work (a new job I had been at maybe a month) to announce I was going to be an auntie a few months after I had my second miscarriage. She was well aware of both miscarriages and this was before I was expecting our June 2020 baby.

-Attempting to insist that her son who would have been about 5 months at the time come to my baby shower. As mentioned above my husband and I went through 2 miscarriages prior to having our son and I was looking forward the celebrating our son with friends and family. I’m not usually one to want to be the center of attention, but it had been long and difficult journey to having him and I didn’t want to share the spotlight with my nephew. Spoiler alert… COVID hit and we didn’t get to have a shower.

-Additional reference here, my husband and I knew I was pregnant at her baby shower for above child, but didn’t say anything that day to either family because it was her/their day. It was a coed shower.

If you read this far, thank you.