Boyfriend?

I have been going out with this guy for a little more than a month, we go to different schools now and it’s insanely difficult but I still really like him, we started off really strong but now I feel like he’s ignoring me and he has lost interest, I told this to one of my friends and she told me to check his snap score and see if it goes up, if it does you know that he is ignoring you. So I started to check it and to my dismay it has been going up quite a lot. Also when I’m with my friends and they send him something like a picture of me he will respond to them and not me until hours latter, sometimes even the next day! This is my first real relationship with a guy I Legitimately like so I’m not sure if he really is ghosting me and trying to give me hints or if it’s just in my head. Any advice????