Why is he only sending me memes?

So i (18G) met this guy (25B) on interpals, we both live in the same country but he still texted me. he's really funny and we have the same type of humor and writing style. When i mentioned i have to take a lvl 2 English exam he offered me to help with English so we continnued to talk on WhatsApp. everything was great we chatted for hours every day he wrote me good morning and good night almost every day. But last Saturday he started to ghost me. when i send him a text or a meme he only reacted with heart and didn't text back. i think that this is really rude but i know he have to work so much becouse he's been talking about how tired he is all the time. then we didn't speak for 2 days. after that i thought that is would be silly to cut contact becouse of this so i texted him good morning and a send a meme. He reacted almost immediately and reacted to it by a heart. but he didn't answer. i was really sad so after 10 hours of no reply i deleted him on interpals and deleted his number and him on WhatsApp. i felt emberassment. After an hour he texted me that he have so much work but i dont know if i believe him. so i texted him back but we dont have that connection anymore sadly. after almost a day he sent me 2 memes. i really like him but if he doesn't like me i dont understand why he keeps sending me memes.

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+1 y
I listened to your answers and continued to answer his messages. I know he works hard and I respect that. but it appeared that he only texts on weekdays and he not even available on WhatsApp on weekends. we live quite far from each other, but this weekend he came to the neighboring town, which is half an hour away from me, and he texted me , but he didn't even ask to meet up. I feel awkward but I feel im a boredom pursuit. according to you, should i let go of the idea that we will get together?
Why is he only sending me memes?
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