Boy & Girl Trouble

Miabelle • Baby-faced. Old soul.
So school just started for me (August 4th) and I'm very new. I just moved here six months ago. I have a handful of "friends" but not best friends since mine are back at my old high school. Anyways, I'm friends with this girl; let's call her A. So at the end of last year, she started to hang out with these two other girls (B & C) more than me. Her and I had a mini fight because I was mad that she stopped hanging out with me. I fixed the fight and apologized since I was crying and everything was good in a matter of two days. A told B about it. B was a little pissed at me but her and I are good. Fast forward to today (August 5th): I told A about this boy in my 4th period. He's really cute with his dark blonde hair and little bit on stubble on his cheeks. I don't know his name or grade because he seems a little quiet and keeps to himself during class. I have seen him a lot ever since I saw him the first day during class because I guess some of our classes are by each other or something. On the first day I only saw him once (in class) but today I saw him like four or five times. Yesterday he walked by my table, looked at my table, and almost tripped...according to this other girl who I talk to a lot. (I trust her A LOT more than A.) She told me because my back was to him but I then saw him once he came into my view. Then today, he walked passed my table again. My desk in the classroom in on the side facing the middle while his table is in the middle looking at the front of the classroom (my right) so I have perfect view of him but never stare. We sometimes make eye contact but both look away. Anyways, I told A about him during our last period. She then told me something along the lines that she wanted him. She has a boyfriend or did (not really sure) because they supposedly had a fight and haven't talked all day.  Her boyfriend graduated this year and is out of high school. He is actually her previous ex boyfriend's cousin...
Awhile ago today she randomly texted me:
Her- "I want to see him"
Me- "Who??" 
Her- "The guy you think is cute. Like secretly take a picture of him. Monday."
Me- "Why?"
She hasn't answered because I texted her a little late...
I'm shy and she's not. So I feel like once she knows what he looks like (and if she thinks he's cute) that she'll try to talk to him and do whatever...
Since I'm shy, I can never go straight up to him without knowing a few things about him plus I know it's too early to even do anything...
I told my Mama everything (but the whole text thing because my Mama is sleeping right now. Lol). My Mama thinks he likes me BUT y'all know how moms are...I also told this old friend of mine (D) from my old school. She thinks he likes me...but again, still bias. 
What do I do about her (A)?
What do I do about him? 
Sorry if anything seems confusing and any errors. If you have any questions, I'll answer for you. Thank you for reading!! :)