Which fiery sign you are talking to you did not say. There are three fiery signs Aries, Leo and Sagittarius. All Three are very different. Aries is ruled by Mars which makes them very energetic and attractive. Leo are gentle despite their roar, but have a strong appeal. Sagittarius are highly determined and focused.
Also you have not mentioned your sign. Please provide full information and I’m sure the learned astrologers would assist you further.