Does Boss Lady know about these antics? Will she do anything about it?

Is his behavior running customers off? Sometimes behavior towards staff doesn't get much sympathy or empathy from the boss, but if they're being hit on the bottom line that might prompt action.
Yup, boss lady knows about his antics and tells me to ignore them and give him his time to shine. In my opinion, she is afraid of losing him and will do anything to keep him there. I feel like I involuntarily got dragged into their little battle against one another.

His behavior is making his long time customers frustrated. I have received several calls now from loyal clients who are asking what is wrong with him, and if he continues his behavior, they'll stop buying the company's products. Sales is already down to nothing.

These people just aren't professional! I can't wait to find something new.