When a man says, "She has my heart," he is expressing strong feelings of love, affection, and emotional attachment towards a particular woman. In this context, "heart" is used metaphorically to represent the center of his emotions, the deepest and most intimate part of himself where his love for her resides.
Saying "she has my heart" is a way of conveying that he deeply cares for her, that she is the person who holds a special place in his life and has captured his love and devotion. It indicates a significant emotional connection and a sense of being deeply connected and committed to the woman.
It's a heartfelt statement that suggests the woman is cherished, valued, and has a profound impact on his emotions and well-being. It often implies that he is willing to go to great lengths to make her happy, support her, and be there for her in both good times and challenging times.
This expression of having someone's heart is commonly used in romantic relationships to signify a deep and profound emotional bond, indicating that the person has become an essential and irreplaceable part of their life.