What is the ruling on the continuation of estrangement with a female colleague, given that she initiated the swearing and transgression, and will my deeds be accepted and elevated, and what is incumbent upon me to do?

Reviling a Muslim is legally forbidden and considered an act of wickedness. Abandonment (boycotting) between Muslims is not permissible, and it is not lawful for a Muslim to abandon his brother for more than three nights. If your colleague offends you, it is permissible to abandon her for only three days, unless there is harm to you in maintaining connection with her. According to the majority of scholars, the abandonment ceases simply by initiating and returning the greeting of peace. It is preferable to maintain ties with the offender and to forgive them, provided there is no harm in doing so.