Update for Grandma won’t accept that it’s freezing cold? Is this common and what to do?

Thank you all for your responses and advice. Unfortunately it was all pointless.

It turns out that she just doesn’t care about me. My younger 16 year old cousin has been staying there the last couple of days and my grandma has bent over backwards to accommodate her. Fire fully on, gas heater, curtains closed for once, and to my shock the central heating was put on.

For anybody who cares, this is not actually a shock to me because she has treated me differently ever since my dad committed suicide in 2013. I’ve struggled with severe depression and anxiety ever since but she acts like it never happened. I’ve really started to lose faith in her love for me and I’m quickly approaching the final straw.

Anyway, thanks to everybody ❤️