Guys, why isn't he texting first anymore?

Anonymous
The last time he was first to initiate a convo was Good Friday. We've been talking for hours every single day since the beginning of the month. Yesterday, he messaged me when he woke up saying Happy Easter. I replied the same back. Then he didn't reply and its killing me. Im already overthinking.
When he said happy good Friday, and i said it back, he asked what i was doing. But yesterday it wasn't like that.

But every time im first to talk to him its not like he's disinterested. We just talk normally and have interesting talks. But on Saturday when i said hi to him, he didn't say much and he seemed off (i think its because of the night before that on April 15). I told him he did seem off and then got his attention by this because he started asking how he was off. Then we began to have our usual normal conversation.

here's a TIMELINE:

April 14
In the morning he messaged happy good Friday. We talked. Then at night at 11pm he said "lol ok" and i didn't know what to say so i just left it on seen and planned to reply to it when i sleep. But at 1:30am he messaged me "well then". I was gonna reply but my mom told me to sleep so i had to say "goodnight". He said "night". To me, it seemed like by telling him goodnight i was telling him to shut up.

April 15
At night, i messaged him and i tried starting a convo but he was being boring and didn't say much. I suspected he was upset from last night. I said he was off and got his attention. We had a normal convo after.

April 16
He said happy Easter to me. First time we didn't have a convo in a whole day this month.

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PS we're just friends, have one class together, and only really talk on instagram.

Is there a reason why he's not texting me anymore? he's not busy, im sure. Is he getting bored with me?
Also would it be because i always ask what he means when he says things? Or ask when i dont get or wanna make sure what he said?
Guys, why isn't he texting first anymore?
4 Opinion