Search Results: when girls blush

We met over the summer and he later befriended my brother also. He is 13 months younger than me but I am a little immature (unless I need to be otherwise) and get along with younger people maybe cuz that's what I have been around. But I have choir and study hall with him and he will look at me and I will sense it and look back and he most of the time (when I dont look away blushing like crazy) smiles at me. He is sometimes shy mostly when there is a lot of people I recently noticed because he was looking at me after the teacher said partner up for a assignment and he was upset cuz he couldnt go to the school movie later that day and when I sat by him he seemed happier especially when I gave him something from the movie after school. I have noticed depending on who he is around (we hang with different groups) like when he is alone with me or around people he doesn't care about (which the second one is rare) he will be more flirty and tease me and act cute. But when he is around his cousin (which he tries to impress and sadly looks up to even tho they r the same age) his mom and dad like me (I'm friends with his sissters and younger brother which one of the sisster and his younger brother admitted to likeing me and I'm am straight so I said no to the girl and I dont like kids more than 1 MAYBE 2years younger) during summer when we would go out and play basketball with my brother and him he would try to impress me and while we would go outside and hangout he would , everyone said, that he would mouth that he likes me. But he also said he liked this girl at a different school who (how he described) was total opposite of me but then he after talking about her and me getting (so stupidly obviously but not in a bad way) jealous he liked my reaction and after ward he said she said no to him. He will also start saying certain words how I say them (like how i say fity instead of fifty) or how j call everything "dope". Also he will get mad at me when I say something "mean".

Guys, why would you suddenly act distant towards a girl that you're just friends with?

~ MORE INFO:
A guy friend used to give me hugs and was really friendly towards me. Tbh, i liked him a tiny bit, but it was going nowhere, cos i fancied another guy a lot more (and i assumed my guy friend had other girls he talks to, i saw it on his snapchat, so i didn't think it was a big deal).

His group of friends used to tease him by saying he likes me, but i just took as as a joke and brushed it off!

Now he's acting distant & removed me from facebook & instagram, but for some reason, kept me on snapchat and still watches my stories.

~ this guy is best friends with that CONTROL FREAK GUY that I've mentioned in a few questions, so i feel like he might have gotten jealous that i was closer to his best friend and now tells him not to talk to me etc.

~ I've done nothing wrong, but be friendly to him. So maybe he did fancy me (hes quite a shy guy and sometimes blushes) but it hurt his feelings cos it was going nowhere and is trying to get over me?