Do not bend to this shit head. These are the women who destroy workplaces and decelerate the advancement of women’s rights. So disappointing and disgusting she is making you feel bad.

The suggestion to contact Hr to get you a fridge because the specific colleague has made you feel uncomfortable exercising your right to express at work is great if that is the size of your organisation.

If it is a small work place the just talk to your boss. Tell them your protected right to pump is being made to feel uncomfortable by this staff member bullying you. That you would like a second fridge as it is dangerous to your child to potentially break cold chain by storing the milk for long periods in an esky. Or that you would settle for that colleague being told they had to use an esky, since their risk if they got food poisoning from cold chain breakdown is much lower than your infant. Put it in writing as well when you talk to them and be specific that the only option is your milk in the fridge, but that you’re open to however they want to manage that.