The phrase "a bit of a romantic" is an idiomatic expression used to describe someone who has a tendency towards being sentimental, idealistic or expressive about love and relationships. This person may have a strong appreciation for beauty, art, music, and other forms of creative expression that are often associated with romance. They may also be inclined to see the world through rose-colored glasses when it comes to matters of the heart, and may place great importance on gestures of affection, intimacy, and connection in their personal relationships.