What does it mean when a guy stays I'm precious to him?

This guy friend of mine started saying "You're precious to me" while hugging me and kissing me on the forehead. We're not in a relationship or anything. We have admitted to each other that we like each other, and we kiss and stuff, an he says he loves me. It's complicated I guess. But I don't know if he really truly likes me or not, and I don't want to get hurt
What does it mean when a guy stays I'm precious to him?
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