Very well, you're right. Your aunt is an awful person and she should definitely apologise for catching you fuck in a perfectly appropriate time and space without locking the door. Please accept my apology.

Lmao, I was about to answer to your comment, but others have roasted you well enough. Hope you'll read with more attention next time. :)

You're missing the point. The only fact that they haven't done anything with it yet doesn't mean it's still yours, or that they should behave as if you were still living there.

Stop acting like an ungrateful child...

Your argument about the so called knocking-culture would only be valid if OP was in her own bedroom, or in the toilet. Not in someone else's house, where she doesn't live anymore, during a family gathering.