Was it essential travel OP? If it wasn’t, you are being very unreasonable.
And here we go with the ROOLZ where people make it up as they go along. There is no law/rule which says travel should be essential. We are free to travel as we wish, and always have been. Her reason for travelling is entirely irrelevant.
Except for the hardcore posters who have moved from being the Lockdown Police to the Mask Police. No reason for travelling will be good enough, because everyone should be locked in their house, only leaving for food and medical appointments. How dare you go flouting the roolz OP, flocking on a plane and having the temerity to get sick.
As for the "how does a mask make you sick" crew - when you're already feeling queasy the usual advice is to get some fresh air. If you're in a car, stop and get out, walk about. The colder the air, the more refreshing. I don't get travel sick but have had horrendous sea sickness once, being outside on the freezing deck was the only thing which worked. A sniff of warm air or food smells and I was off again. Can people really not appreciate how feeling sick and breathing in warm, damp air through a mask isn't going to make that worse? And you can't open a window on a plane, obviously.
The lack of compassion and the willingness to kick someone who has clearly had the journey from hell is appalling. I don't like what this pandemic appears to have brought out in a lot of posters.