How do you react if a friend tells you that they have a crush on you?

[Julia]

So, my name is Julia, and i'm thirteen. So, i have a super close friend named Sarah who goes to another school, but lives in the same neighbourhood as me, so we're basically best friends.So she's best friends with this guy at her school, which is quite cute, that basically is wanted by every girl in her class, and because me and Sarah are close, we become friends on Facebook right? ( he's 14, by the way) And we quickly become good friends. He is actually really sweet . And one thing led to another, and then he starts getting flirty! And im just like looking at the screen thinking '' OMG''. well, apperently, Sarah says he's getting crazy, and is starting to write my name all over his desk, and is pushing away all the girls that are flirting with him! And, im just standing there, not knowing what to say! He and Sarah are best friends, and he IS cute, but idk... HELP ME!!!

[Caterina]

Woah man.... slow down! First of all u have to ask Sarah how she feels about the whole situation, maybe she likes him??? u never know. the worst thing u could do is date this boy and then lose ur best friend!!
and if she is happy with the idea that u too date then do it!! it seems like he really likes u!!

[Cody]

If he hasn't broken up with her yet then he has no problem with cheating and will probably do the same to you.

[That Curious Bi]

i smile and tell them i have a crush back. it's pretty usual for me anyhow.