Am I overthinking?

Hi! I’ve been having this long distance “getting to know each other” thing with a guy for a while now (5 months). We had a couple of dates las Christmas and it went really well, but we live in different countries, we text (or better say send voice messages) almost every day but lately I’ve been feeling like his texting habits are a little weird (would let me on read for a day, would not text me until it’s the nexts day or if’s we talk in the morning he would respond just right before he goes to sleep) With everything that it’s going on in the world I know my concern it’s really stupid but all of this has made me a overthinker and I can’t help but feel like he is just not that into me that much. What do you think? I’m sorry if it’s confusing English it’s not my first language