A woman has questioned if she is in the wrong for refusing to go to her sister's wedding because her sibling is tying the knot to her ex.
The unnamed 27-year-old took to Reddit to reveal that she had history with her sister's fiancé.
She revealed that she dated Mark for three months in college before he suddenly ghosted her.
After he cut off communication between them, Mark began dating the woman's 29-year-old sister, who she calls Rachel, and the pair are now set to tie the knot.
The woman admitted that she had always felt like she was in her sister's 'shadow,' so it stung even more when her sibling began a romance with her ex-boyfriend.
She explained the situation in the AITAH subreddit, as she opened up about the tumultuous relationship she had with Rachel.
The woman confessed that she had made it clear that she didn't want to attend her sister's wedding.
However, after Rachel and her family branded her 'petty' for not attending, the 27-year-old begged people on the web to tell her if she was the 'a**hole' in the situation.
A woman has questioned if she is in the wrong for refusing to go to her sister's wedding because she is tying the knot to her ex (stock image)
The post was titled: 'Am I the a**hole for refusing to support my sister's wedding because of how she treated me?'
She explained: 'I (27F) have an older sister, Rachel (29F), who has always been the "golden child" in our family.
'Growing up, she was the smart, pretty, and talented one, while I was always in her shadow.
'My parents compared us constantly, and no matter how hard I tried, I could never measure up to Rachel.
'She got the better grades, had the more impressive jobs, and always seemed to get whatever she wanted without much effort.'
The 27-year-old noted that the pair's bond was tainted even further when Rachel began dating Mark, who is her ex-boyfriend.
She added: 'Fast forward to now: Rachel is engaged, and the entire family is obsessed with her wedding. She’s marrying a guy I briefly dated in college — let’s call him Mark.
'We dated for about three months before he suddenly ghosted me. A few weeks later, Rachel introduced him as her boyfriend.
The unnamed 27-year-old took to Reddit to reveal that she had history with her sister's fiancé
'It was incredibly awkward, but she dismissed my feelings, saying, "It’s not like you guys were serious."'
The 27-year-old admitted that it was extremely difficult for her to move on.
Because of this, she decided to skip the wedding. However, her choice got her in hot water with her family.
'I’ve tried to move on, but every time I see them together, it feels like I’m being erased. Rachel’s asked me to be her maid of honor, and honestly, I don’t want to do it,' she said.
'I don’t even want to go to the wedding. I told her as much, and she completely blew up, accusing me of being selfish and bitter.
'She said, “You’re just jealous because I’ve always been more successful than you.”
'Our parents are pressuring me to “get over it” and be there for her, but I don’t feel like I owe her anything after years of being second best.'
At the end of the post, she questioned if she was in the wrong for ditching her sister's wedding.
She wrote: 'Some of my friends agree that I should set boundaries and not let her walk all over me.
'Others think I’m being petty and that this is just about old sibling rivalry. Honestly, I’m torn.
People on the web flooded the comments section and ran to her defense as they slammed her sister, who she called Rachel
'Am I the a**hole for refusing to support my sister’s wedding because of how she’s treated me and the history with her fiancé?'
People on the web flooded the comments section and ran to her defense as they slammed Rachel.
One person said: 'This is just a power play by your sister, hold your ground... believe me your crazy sister is insecure and obsessed with you because you are better than her. Next time try finding her deepest wounds and whenever she tries to hurt you put your finger in her wounds and keep twisting till she breaks. Not the a**hole.'
Another user commented: 'Not the a**hole. Your feelings are valid and you should never do something you don’t want to do.'
'Not the a**hole. An invitation is not a summons. Your sister and family should learn to accept NO for an answer. No is a complete sentence,' someone else wrote.
A fourth person added: 'Don't you just LOVE when people try to shame you into doing what they want?? Not the a**hole. I would set boundaries and block anyone that crosses them.'