My boyfriend doesn't send me kissy face emojis anymore. He used to in the beginning and now he stopped. Is something wrong with him.. or me?

He (26) did it a lot at the start of the relationship (three months ago) now he doesn't. Am I immature for thinking he doesn't care anymore over an emoji?

When we are together he is very affectionate.
My boyfriend doesn't send me kissy face emojis anymore. He used to in the beginning and now he stopped. Is something wrong with him.. or me?
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