so they can get what they want

You're not wrong there.
It's so frustrating.

One should be hurt by the truth and not comforted with lies.

and I'm glad you've got this space to share your thoughts. I hope your sister learns the truth.

Yeah, I'm glad too, it is one thing that keeps making my heart feel good when everything about my offline life seems to make me sad.

As for my sister, she knows the truth and hasn't been fooled into believing a lie because she knows how my partner lies and exaggerates to make himself a good person and escape from the punishment of his wrongdoings.