AITAH for not believing my sister had an pregnancy and not reaching out and comforting her when it was proven to be true?

A 27-year-old woman completely cut ties with her younger sister after years of serious lies, including faking a sexual assault. Now, when the sister actually went through an ectopic pregnancy and lost it, she still chose to stay distant and offered no comfort.

The family is split: her parents understand and respect her choice, but her older sisters blasted her for being cruel, saying she’s punishing the younger one and leaving no room for change. Is protecting herself from more hurt too harsh, or the right call especially with a baby on the way?

‘AITAH for not believing my sister had an pregnancy and not reaching out and comforting her when it was proven to be true?’

The whole thing started with an especially close sisterly bond between the OP and her much younger sister, as the two youngest in a big family of seven kids:

Everything shifted when the OP was 19 and her sister 17, after a frantic call that made her cut a vacation short:

The OP supported her fully, got tests done, and kept the secret:

The truth came out during an argument, shattering everything:

Their parents overheard and forced therapy:

The lying continued with more serious incidents:

The OP realized things weren’t improving and went no contact:

Now pregnant with her first child, a new situation arose:

The older siblings’ reaction left the OP questioning herself:

The OP worries about the future and her own well-being:

The younger sister’s repeated serious lies, especially faking sexual assault to manipulate her sibling, point to deep behavioral issues, possibly tied to unhealthy attachment or extreme need for control. This didn’t just cause massive emotional damage to the OP—it eroded trust across the whole family.

Mental health experts stress that someone who’s been manipulated repeatedly has every right to create distance for self-protection. As Dr. Ramani Durvasula, an expert on narcissistic abuse, puts it in her book “It’s Not You”: “When someone repeatedly violates trust, continuing to give chances isn’t forgiveness—it can mean setting yourself up for more pain.”

Even though this time it was real, the OP’s skepticism makes total sense after the “cry wolf” pattern. The older sisters pushing for reconciliation might stem from shared family guilt, but they weren’t the direct targets, so they downplay the severity.

With the OP pregnant, prioritizing her mental health and stability for herself and her baby comes first. Practical advice: stay no contact until there’s solid proof of long-term change through therapy and full accountability for past actions. If anything, a brief well-wish through a third party keeps basic humanity without reopening the door.

Here’s the input from the Reddit crowd:

Online users were almost unanimous in supporting the OP, but their takes fell into a few clear camps.

First off, plenty called it straight-up “cry wolf” and stressed the need to protect herself from more manipulation:

Several went harder on the damage caused by faking SA and called out the younger sister’s actions as downright vile:

A bunch pushed back on the older siblings for not getting the full picture and minimizing the trauma:

And finally, one pointed out the irony of expecting a pregnant woman to comfort someone over pregnancy loss:

This situation highlights how personal boundaries can be the only way to shield yourself from repeated pain, especially after trust has been broken so many times. While nearly everyone online backs the OP, the final call is hers—balancing family compassion with long-term emotional health.

What do you think? If you were in her shoes, would you open the door again for forgiveness, or keep the distance to protect yourself and your future child?