This is the third year i’ve had a huge crush on my brothers best friend

It’s all started when he started to like my instagram pictures. Then I started to post things like tbh and rdh which stands for like to be honest stuff. He would reply back for one. I told him that he had a cute smile and stuff. I don’t remember what he replied with but it was good. Finally I got the courage to start trying to snap chat him and I sent him streaks then he sent them back. We ended up stay up late talking once and I bet him that some guys abs were better than his and he was like how bad do you want to see them and all the lights were off and he was about to go to bed and I was like a lot. So ten minutes later he sends an an pic of him in the mirror flexing really hard. Then he was like your turn and was like how bout a booty pic not an ab pic so I sent one and he said it was to blurry and to send another one so I did then ten minutes later after he opened it he sent fire emojis like it was hot.

We rode four wheelers all day with our siblings cause I’m also best friends with his sister. After that my friend had to go to practice so him and my brother had to give me a ride home but they decided to go fishing. So we first stopped out at our house to get poles and stuff. As I was walking inside he asked me if I would go and was like sure. Then I said it will be cold so I will need to get a sweatshirt. Then he said under his breath you can wear mine. That was like 7 months ago in the summer now it’s in the middles of February.
He started talking to this girl a grade older than him and to remind you I’m two years younger than him I’m 15 and he is 17. My brother usually takes me to school in the morning but on tuesdays and thursdays he can’t because he has practice. So asked his friend if he was and he said if you actually need one I can come get you. In the hall ways I’ll walk by him and I’ll look at him then look away, then look back to see if he is still staring and for SURE he was?!!!! But he was smerking also. So I awkwardly smiled back. He always tries to catch eye contact with me and it always makes me blush.
Anyways this one girl he is supposedly talking to he called it off like three months ago. But when she stopped answering him he said to her that he actually liked her. So I don’t know if he likes her more and me just as a friend and doesn’t take me seriously. Also when I’m in the weightlifting and I’ll turn around and he’ll be staring at me then act like he was look somewhere else. I was like walking by and it felt like slow motion with him staring at me and I grinned and I think he realized what he was doing then he acted like he was trying to get the coaches attention. Then acted really awkward about it.
Oh and one morning he had to pick me up he was running late so he dropped me off up at the door so I wouldn’t be as late. I said bye then he said bye but looked at the floor. When we talk we both get really like excited and in tune. And when I Text him the night before I need a ride he’ll ask me who else gives me rides to school and I’ll give him a hard time and I’ll say does it matter and he is like yeah.