You are correct!
From our dictionary:
—v., --bled, -bling.
1. to give a false or misleading appearance to; conceal the truth or real nature of: to dissemble one's incompetence in business.
2. to put on the appearance of; feign: to dissemble innocence.
3. Obs. to let pass unnoticed; ignore.
to conceal one's true motives, thoughts, etc., by some pretense; speak or act hypocritically.