Search Results: asking him to a dance

My "friend" told my crush I liked him and I was planning on asking him to the Sadie Hawkins dance.. My crushes brother then went on IG live and was like telling everyone I was gunna ask him which was pretty douchy. He shut his brother down and called this "friend" again and said he has a game that day and wasn't interested in the dance in general so he was going to have to say no and didn't want to have to embarrass me when he did. I then text him after all of that and say I wasn't going to ask in the first place, which is true because I already had a date since the beginning. I told him my friend got me and another girl confused which was sorta true. He texted bad saying "hahahaha it's all good no worries." Now he's avoiding me but keeps watching me in class... He also told a bunch of his friends and my friend over heard him saying that class is "awkward now."

So some questions:
does he still believe the friend that I like him even when I cleared everything up with him?
why do you think he is avoiding me?
why did he tell a bunch of his friends? (he acted weird with me at the beginning of the year- he kept looking at me, saying hey, and whispering to his friends)

So this guy was showing signs of possible interest, for a while- like constant eye contact, initiating conversation, his friends smirking at me, and other things. I started gaining feelings for him. All he does recently is stare sometimes.

A month ago he heard from my "friend" that I was thinking of asking him to sadie hawkins dance, which wasn't true because I already had a date. He didn't act different for that month. The other day I added him on snap as a friend, and HIS BROTHER went on IG live and was like "who's that girl that was going to ask you to the dance? and said my name. Then he called a mutual "friend," apologized for his brother, and calmly explained he already had a game that day and he's not interested in those dances, blah blah blah. The thing is, I think this "friend" told him I had feelings for him, which i sorta do. The problem is, i don't know how much she told him and if she might have lied to me or him...

The day after he told her he had a game and stuff, I texted him letting him know that I wasn't going to ask him in the first place, and that me and the "friend" he told, weren't even close. He replied "hahahaha its all good no worries" and i thought everything would be cool.

I went back to school today and he sorta ignored me by going out a different door so he wouldn't have to pass me. Why do you think he avoided walking past me?