The Meddler

• They belong to the "meddle" class.
• Her plastic surgeon was able to do everything with her nose but keep it out of other people's business.
• Their business is what none of their business.
• A good description of him would be fair to meddling. 

The Meddler is invasive, bold, judgmental, brazen, bulldozing, controlling, instigating, self-righteous, jealous, shameless, sharp-tongued, sneaky, gossipy, dogmatic, fault-finding, questioning, interfering, egotistical, sadistic, offensive, nosy, questioning, out of control, rude, annoying, conspiratorial, underhanded, offensive, and sabotaging,