Hi, need advice. Work in office with 4 others. One year ago ond person was with was unhappy in our office and made nasty comments about me to head of department. Saying I was lazy, made the person feel unsafe. Complete lies. Investigation took place as you'd expect (have no problem with investigation) found she was lying she ended going to another department. I see this person every so often and I can't get over what they did. I try hard not to think about the person or what they did but it really hurt. I absolutely despise this person. Any tips on getting over this, it's been a year now