How would you deal with your work colleague

I have an office job, the office is in the basement, luckily we have one small window there. My colleague who sits in front of the window is always cold, no matter how warm it is outside. She doesn't want to swap desks. There isn't a draft or anything and the aircon is never on. So it does get quite warm there, especially when you sit there 9 hours every day. One on my colleagues who was there today, opened the door for a bit and as soon as she stepped out, this "cold" colleague of mine got up and closed the door very quickly, complaining she is cold. I asked her to keep it open for a bit, telling her I was feeling very hot, which she refused and said I am hot because I am pregnant. I answered to her that this is quite normal and therefore I should be able to let some air in from time to time. Bealive its easier to dress up rather than having to take my clothes off. We didn't get anywhere because I would have to be hormonal and I don't like showing my emotions much. I should have put on the aircon but I didn't think. I was quite upset. I said to her, that if she will keep the door closed I will not help her with tasks because I will have to go out to get same fresh air. I ended up stayin it but I didn't help her. What would you do? She is quite hysterical and much younger than I, but I can't take shit any longer. Where is some respect?? Couldn't she keep the door open for a bit!? And it's not like she is in charge of the office! Should I speak to my senior? Or should I take more breaks to go outside and take full advantage of being pregnant and leave her some more work to do?😝