Getting over him

Hi all :)

This might sound silly but I need a little help or advice on how to get over the kid I’ve “been in love” with for over a year. He was the first person that I grew feelings for since my ex and I broke up. The way I felt toward him was super weird. Usually, if a guy was rude or mean, I would just drop it. With him, I stuck to his side through everything. The days I hated him, somehow he was the one I wanted to be with. He would make me laugh, we would stay up until 5 am talking about everything! We talked about our future house and future dog & life together. We’ve always been very close. Recently, my neighbor had asked him when we were officially going to be a thing (my neighbor is more like a brother so he was trying to lookout/protect me) and the kid I was talking to got super weird about it. Since then, we haven’t been as close. How do I start getting over him?