Why is he suddenly being dry?

There's this guy who has a crush on me. The first time we texted, he was flirty and sweet and even said he loved me. However, now when I text him, he takes hours to respond, and his messages are dry; when I snap him, he leaves me open while his snap score goes up (I even asked for a pic of him to assign to his contact, and he told me that he doesn't like taking photos; then I check his snap score and it went up). I'm confused and don't understand why he's suddenly changed his behaviour.

Ask him why he is being dry?
Give him the same treatment
dont do anything
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5 mo
So, I texted him saying: Hey, I've noticed that our texts have been getting dry, and I'm not sure where we're at. I'm genuinely interested in having a meaningful relationship with you. I don't want to waste my time if we're not on the same page, so let's have a real talk.

and he replied: Hey, sorry I’ve just been super busy. I don’t think this weekend will be good for me (for our date)

Do you think he is actually busy or uninterested?
Why is he suddenly being dry?
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