@pringlecat
If anyone joined my team and started giving attitude about something as trivial as taking it in turns to get a drink for a colleague, I would start to question whether they were a good fit. It's one thing politely opting out of a drinks round - "Oh, I find this one giant bottle I bring to work every day does the trick for me, so I'll sit out the rounds if that's ok?" to declaring "Not happening!"
Completely agree. Not a great attitude from the OP at all.
Although I do agree that if she never has hot drinks, she probably shouldn't have to be making as many as her colleagues, but she should be offering to make a few!.
Or as you say, maybe just say 'I hope it's OK, but I just bring my own cool drinks, so would prefer to opt out of regularly making hot drinks for everyone. But I don't mind making the round once or twice a day.'
Saying 'not happening!' makes her sound a bit obnoxious. (And I am not sure her manager is as OK with it as the OP has made out in her 'update.')
@Karmastar
I don't drink not drinks either, but I've definitely always offered, and made, got drinks for family, friends and colleagues. I don't get why you wouldn't and your attitude was a bit off.
@healthymum2018
I must be on another planet! I totally agree with lolaflores. I was really shocked to read your comments about this and those you made to your manager. It is common courtesy to make drinks for you colleagues (whether you are having one or not). Firstly, you have only been in the role a couple of months, so still within your probationary period, secondly, you are a member of a small team of 4, which suggest you are close knit and should all support and help out. Thirdly, and no disrespect meant but you are not a manager or a director, ( who could be super busy) you are only the Admin assistant.
Pretty much agree with these 2 posts. ^