Teen couple nonsense

I hope this isn't too long but I need to get it out somehow. I'm 16 and I know I am young and I have all the time to worry about guys but this one is something else. The first thing is we met through Instagram.

I'm from Texas and him Michigan. That's way far for us. When I found out I actually had no intention of growing feelings but I mean do we ever? I grew insane feelings and he did too. We even said "I love you" which sounds silly since we haven't even met. Things were great we would stay up all night on facetime laughing and getting to know even more about each other. We planned how we would meet once I graduated (2 years after him), how we hoped pur family would be if we stayed together and what we wanted out of life. He used to text me good morning every morning, then some mornings, then he wouldn't text me at all I had to first. Every time I asked to call he said he was busy with homework or was tires I understood at first but it became this continuous thing. After 3 months of "being together" (which I know isn't even a long time) I don't really know how he could be like that towards me. The way I thought about him was almost obsessive. I couldn't get him out of my mind. I confronted him of the change and yes I was emotional. He said Istarted hating him randomly and he didn't see he did anything wrong because he said he didn't want anyting serious from the start but he still text me everyday he was the first to say I love you. If he didn't want that why would he say it at all? I told him he lead me on for that whole three months and he refused to admit it though he was contradicting himself. I feel he's effecting my mental health . I miss talking to him about everything and nothing at all. He's the only person I feel like ever understood me and it's hard to let someone you identify so well with go. Even when I meet someone new who likes me and I feel like I could have those same feelings he's just in my mind saying he's here and I'm his and he's mine. It's been a bit and I've been thinking about opening his last message and texting him but I think it'll make things worse because I just don't know how to let him go. I don't know if I should give up and actually try to reach out or... I really don't know but I'm not going back to my counselor especially about a boy.

I feel a little better after that.