Need help with my relationship

So to start it off me and my boyfriend are in a long distance relationship he only lives in the state next me I am 16 and he is 17. I have went and meet him 3 times and tomorrow July 30th is our 2 year anniversary. We are always on the phone video calling and stuff but lately all it mostly been is that we watch stuff together every day and all day long like there not that much communicate or talking any more maybe at night time when we get ready to go to bed but that's it I try starting a conversation but he never keeps it going but he never use to be like this he use to talk to me a lot before but I don't know what happened. But lately we have been working out together 💪🏼 but here recently like yesterday we got in a fight about something stupid and I just decided since he was being a butthead and went somewhere that I won't answer him back and give us some space since I was cleaning the house and stuff and later on that night after I was done I texted him back but in the end everything was okay and fine. But yesterday he's friend asked him if he was coming over to his house and my boyfriend said no because it was our 2 year anniversary coming up and he even showed me the message ok so this morning when I wake up. Out of the blue he says he's going to his friends house and I just got so upset because who does that and definitely the day before our 2 year anniversary we got in a fight and kinda still in one I'm still upset and not happy with him right now. I ask him why tell his friend and show me the message saying he wasn't going okay then this morning say I'm going to my friend house but then why did he said yesterday he wasn't going because of our anniversary. He said we need some space and saying he trying to fix our relationship by leaving out of the blue and say we need space but he has never done something like this before and he said I'll be home before you wake up at 12 am and saying I'll be asleep until 4 pm no the only reason I sleep so late is because we stay up until 4 5 am but recently it been 6 and 7 am so it's not my fault that I'm so tired.

I don't know if I forgot to put anything else in this or not and I'm sorry that it's so long.

I just don't know what to do everyone please help me. This would be different if it wasn't the day before our 2 year anniversary. Because if it was a different day then I would be fine with it and not be upset but it's not. I really love him and I just want to help our relationship and try to fix it.