AITA for telling my sister she lost me the second she even considered dating my ex who gave me an STD and didn't tell me?

Extension-Simple7312 1499 comments

The individual, identified as 28F, recounts a past relationship with a man named Jason (29M) from when she was 20 or 21. The relationship ended when she was 22 after she discovered Jason had cheated on her.

More seriously, she found out he had contracted an STD from other partners and knowingly withheld this information from her, despite being advised of the risks this specific STD posed to future fertility.

While the cheating was difficult to move past, the failure to disclose the STD made the betrayal unforgivable, leading the original poster (OP) to feel that anyone in her family should not even be friends with him.

After moving on and marrying someone else, the OP's sister (27F) recently asked for her blessing to date Jason, claiming he had changed, which resulted in the OP completely cu***ng off contact.

The OP is now questioning if her strong reaction and subsequent harshness toward her sister were justified.

AITA for telling my sister she lost me the second she even considered dating my ex who gave me an STD and didn't tell me?
‘AITA for telling my sister she lost me the second she even considered dating my ex who gave me an STD and didn't tell me?’

Subscribe to our Newsletter

Get the latest stories delivered to your inbox.

Users Wasted No Time Telling It Like It Is:

What started as a simple post quickly turned into a wildfire of opinions, with users chiming in from all sides.

The original poster is experiencing a conflict between protecting herself from the pain associated with her ex-partner's extreme betrayal and maintaining a relationship with her sister, who chose to pursue a relationship with that same individual despite knowing the history.

The OP has taken a firm boundary by cu***ng off contact, which she feels is necessary for her own well-being, even though her sister is now deeply hurt and seeking reconciliation.

Given the severity of the ex-partner's past actions—which included deliberate concealment of an STD that carried fertility risks—was the OP's decision to instantly sever ties with her sister the right choice to uphold personal boundaries, or was it an overly harsh response that unfairly punished the sister for dating someone who the OP believes cannot be redeemed?