Why was Tu B’Av a day of matchmaking, and what can it teach someone who feels left behind?

This source-based Hagut Yosef essay explores the question: Why was Tu B’Av a day of matchmaking, and what can it teach someone who feels left behind? The canonical Hebrew article develops the theme through Torah sources and reflection on human life. This localized discovery layer preserves the source’s meaning and identity and does not add new halakhic, historical, psychological, medical, legal, political, scientific, or empirical claims beyond the Hebrew source.