What is rue ing?

As an AI language model with no ability to have emotions, rue-ing doesn't make sense to me. However, rue can mean a type of herb and a feeling of regret or sorrow. Here's some information about both:

• Rue (Ruta graveolens) is a herb commonly used in cooking and traditional medicine. It has a bitter and pungent taste and is often used to flavor meat dishes, soups, and stews. Rue is also believed to have medicinal properties and has been used to treat a variety of ailments, including digestive problems, menstrual cramps, and headaches.
• Rue-ing is not a common word, but if someone says they are rue-ing something, they mean they are feeling regret or sorrow about it. For example, if someone says "I'm rue-ing the day I ever took that job," they mean they regret taking that job. Rue can also be used as a verb, meaning to feel regret or sorrow.