ANSWER:

Keep you gaze lowered and do not interact with her at all.

Stay in your room as much as possible during her visit. There is nothing else to do unless you can afford it and move out to a hotel! 

My non-mahram cousin comes and stays at our house for days and my parents allow the free mixing but I don’t like it. When I sit to eat she’s their, when I sit with my family she’s their and it is really hard to stay away from them in a separate room because after all it’s my house and I can’t stay confined in my own house. I’ve told my family multiple times that it is right. What to do?

Dealings and Attitudes with Relatives, Mahram | May 31, 2020 9:05 pm
Previous

My fathers family (mother and sisters) tortured my mom alot so much so that It has taken a toll on her health.The fathers sister lives in the house my dad built and wont leave even when we want to sell it.My mom has sacrificed and saved every penny to build it and now our condition is not good because of them.Am I still supposed to maintain my blood relations?
Next

My family(sometimes) and my close friends make fun of me saying that I did haram things like ages ago. But the taunts haven’t stopped yet. They make fun of me, and even say that I’m no one tell them what is right or wrong. Over the years I have grown close to Allah and I have repented for my sins. And when I feel bad about these taunts they tell me that I need to grow up and stop feeling offended.