1. You may still have emotional attachment or expectation for him subconsciously, and dreams are an expression of your subconscious.
You may dream about him because you have been thinking about him recently, and this idea may have triggered you to meet him in your dream.
Your frequent dreams of him may be your psychological self-suggestion, your dreams of being with him, or what you still hope he can bring you. These dreams may reflect your inner desire.
Dreams have no clear "meaning", it may be a reflection of your subconscious mind. However, the specific content of dreams can reflect some emotions and experiences in your life. If you are confused or uneasy about dreams, I suggest you talk to someone you trust or a professional to help you better understand and deal with your emotions.