Boyfriend keeps correcting my spelling errors when I text him and doesn't call me pet names anymore. We are 4 months in. Why is he already cold?

He doesn't ask me how my day was, I'm always the one asking him. He just vents about how work sucks and corrects my spelling. I'm a teacher with a degree. He is working om his degree but keeps correcting me
Boyfriend keeps correcting my spelling errors when I text him and doesn't call me pet names anymore. We are 4 months in. Why is he already cold?
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