My boyfriend stopped sending me cute texts, what does this mean?

we've been together for 1.5 years, and at the beginning of our relationship he would send me messages like 'goodmorning beautiful/love/sunshine' something like that, and he would send me cute texts at times, but now he's stopped completely, the last time he said I'm beautiful was 4 months ago, what does this mean?
My boyfriend stopped sending me cute texts, what does this mean?
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