I have never seen anyone refuse to accept such a thorough expression of regret. I recommend the three part apology to you. The work involved represents that it is a significant act. There are many ways to assist employees and students to work well together. When an issue develops, it can as easily be used for constructive purposes as for conflicting results.
Basic skills allow people to work it through.
My workshop on conflict resolution in the workplace or classroom has people understanding their options and role playing positive, affirming behaviors amid some toxic circumstances Information Request Form Select the items that apply, and then let us know how to contact you.