Guys, please help, I'm so confusedggg. This is my first time posting so sorry in advance if I mess up.

I'm 23, a kindergarten teacher in Pattaya. I've been with my boyfriend for 1 year and 3 months. Overall it's been okay, but in the past two weeks his behavior's been changing and it's driving me nuts.

He started not replying to my messages in the evenings, even though before we chatted all the time. Used to send pics of his dinner at 11:30pm, now I open our chat and see him logged into Instagram from 10:45–11:10pm but he reads my messages and doesn't reply. Just silent. I hate it.

Also I keep seeing his stories with another person — they look super close — and he didn't invite me to join. We usually go out to the little curry-rice shop near the soi together all the time. Is it weird that I'm worrying about this? Or is my intuition just off? I'm scared to suddenly confront him and make things blow up, because I'm usually calm but inside I'm shook. I feel like I'm being left alone in the relationship, like there’s a gap that can't be filled.

Yesterday I straight-up asked if something was wrong. He answered short: "tired," and that was it. No more, just quiet again. I went quiet too because I was baffled. Why so silent? What's happening? What should I do?

Should I talk to him directly or wait for him to open up? What do you all think, please give advice T_T

P.S. My eyes are dark circles now from staring at my phone too much hahaha. He's still got the sticker I put on his business card, but my heart... do I want things to go back like before?