要看你的manager 是不是一个reasonable manager, 他应该不会理会她的。
And you also can tell your manager when she has some problem but this is just for work not personal. If you feel too bored to do this, and your manager is not fair,
there are tons of job in the market now, life is short, work is just for money, is not your whole life, just say bye bye to these people, not worth to work with.
My experience is, overall, the co-worker or manager are good, if either one is not good, find another job.