My boyfriend tells me i'm the love of his life, what does this mean?

So my boyfriend tells me i'm the love of his life, that he doesn't ever want to be with another woman, he's faithful to me, he's honest and open with me, he tells me loves me and that i'm the most beuaitful girl in the world. Like omg, what does this mean?
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beuaitful is now beautiful* I learned how to spell.
My boyfriend tells me i'm the love of his life, what does this mean?
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