Guys, Why would he suddenly avoid me?

So there is a guy I've gotten to know over the last few months, he seems to be quite shy. I've admitted to liking him/having a crush. I got to hang out with him&few of his family member at a game one time, he would stare at me quite often, has been playing love songs around me etc., he also watches my snap stories, one day I even put on my snap story that once I have a crush on someone, I only like them/only guy I want, but even since then he has started to look at me a lot less often, been somewhat distant/avoident, but still plays love songs around me, had a big smile on his face when talking to me, but when our eyes would meet, he would look away right away. I did catch him looking at me a few times and stare at me from a distance, he also been copying my behaviour a little bit. I am feeling a bit confused as to what this all means, he still talks to me with a gentle, upbeat tone.

Guys, Why would he suddenly avoid me?
Post Opinion