Why does he leave my Snapchat on delivered for so long?

I’ve been snap chatting this guy for a few weeks now and up until now he’s seemed pretty interested, asking questions, occasionally flirting (I think he may be a bit shy). He’s always taken a while to reply to my snaps but I noticed that his snap score will go up, sometimes by a lot, while he doesn’t open mine. Usually in the evenings when he’s not busy he’ll respond quicker and when he does open my snaps, he replies right away.

About two days ago he started barely snapping me and only really responding super late at night and saying he’s been really busy. He does have a really big race coming up next weekend. But while he’s taken all day to even open my snap, I can see that his score has been going up all day so he has time to snap others but not me. Do you think he’s playing hard to get or just not interested?

thanks for any help! (Refer to my other question for more info)

Why does he leave my Snapchat on delivered for so long?
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