How to know if a guy is losing interest?

so i recently went on Bumble and found pretty good conversations with several different guys but they all stopped talking me around the same day and i matched with this guy
i've never actually matched with someone who had a texting style that i wanted - tells me that he's going to sleep so that i don't wonder where he is (basic, i know)

so obviously it was nice, we talked everyday for a bit. after over a week, he asked if i wanna meet up and i said yes. we got to arranging the place and time and he even said "it's a date".

but then right before he asked to meet up, i've noticed that he doesn't really ask questions back to me as much before. not sure if it's because i've been asking most of the questions.

is this a sign that he's losing interest?
i know that i should focus on the first meet because that's more important to see if we have a connection but i can't help but wonder

How to know if a guy is losing interest?
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