When a man says "I need you in my life"?

Men, what does a man mean when he tells a woman he likes "I need you in my life"? What is he really saying? In what ways does he mean this, like how and why? Help me understand, Thanks for your help! ☺️ fyi, he isn't a man who expresses himself or how he feels much...
When a man says "I need you in my life"?
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