Her Brother Cheated On Her Sister-In-Law And Got Another Woman Pregnant, But She Still Invited Them Both, As Well As Her Husband’s Mistress, To The Same Party, And Her Sister-In-Law Had A Meltdown

Have you ever had a friend or relative invite your ex to an event despite your discomfort or nasty breakup?
One woman recently upset her former sister-in-law, who she’s remained friends with, after she invited her and her brother, who cheated on her, to the same party with no warning.
She’s in her late 20s, and her older brother used to be married to her 30-year-old sister-in-law. Four years ago, their family fell apart when her brother revealed he was not only cheating on his wife but had gotten his mistress pregnant and wanted to be with her instead.
Her entire family sided with her former sister-in-law, which was a very messy situation. Since the divorce, her brother has married and had three kids with his mistress.
Six months ago, her family finally got back in touch with her brother because they wanted to get to know his children.
Still, she and other relatives have stayed in touch with her former sister-in-law since the divorce, especially her sister. When her former sister-in-law heard about her brother’s new family, she flipped.
Since reconnecting with her brother, she’s gotten to know and bond with his new wife. Now, she considers them friends.
“It was because of this friendship that I decided to finally invite my brother and my new family to my house for my son’s birthday party,” she said.
“It seemed like the perfect time to do so. What I didn’t count on was my ex-sister-in-law coming to the party. I had spoken to her a few days before and she said she wasn’t sure if she was coming or not.”

LStockStudio – stock.adobe.com – illustrative purposes only, not the actual person
She decided to invite her brother and his new family at the last minute because she had never received confirmation whether or not her former sister-in-law would be at the party.
However, her former sister-in-law did show up to the party and was astonished to see her ex-husband and his new family there. Her former sister-in-law had a bit of a meltdown, yelling at her brother and screaming obscenities at his new wife.
“I had tried to calm her down to talk, but [eventually], I yelled at her to get out of my house,” she recalled.
“She did, and we all just pretended it never happened. However, at the end of the party, my sister, who is still friends with my ex-sister-in-law, told me I should have told her my brother and his wife were invited. It would have influenced her decision to come or not, and not doing [it] made me a [jerk].”
Despite what happened and her sister’s disappointment, she doesn’t think she did anything wrong, as she had assumed her former sister-in-law wouldn’t go to the party.
Should she apologize to her ex-sister-in-law or leave her alone?
You can read the original post on Reddit here.
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