Why doesn’t he text me so much? he only send me a heart or kiss emoji everyday and only chats to plan a date?

He is online on WhatsApp but he doesn’t ask me how I’m doing or stuff like that very often.. he just send me an emoji every morning and then it would be a couple of days before we actually chat and the chat is usually about planning a date. We’ve been on 6 dates and known each other for 1.5 months.
What should I think? Insight please xx
Why doesn’t he text me so much? he only send me a heart or kiss emoji everyday and only chats to plan a date?
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