My boyfriend said I feel like home, what does that mean?

My boyfriend and I were cuddling while watching TV. He was staring at me smiling. When I made eye contact with him, he exhaled and said "laying here watching SpongeBob with you feels like... home". He kissed me before I could ask any questions. I've never dated a guy who ever said that before. Is it significant?

My boyfriend said I feel like home, what does that mean?
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