I'm not going to check on my friend
Why not just check on her really quick?
Because I can't help her, she's always such a wimp
You are her friend so you should help her through tough times. If she's always having a hard time, you should try to help her in that regard as well.
She's a big girl so she's fine making her own choice.
I think that a phone call even just to check in. I think that you should just make sure she is okay while going through this rough time.