My math teacher want to know where his x is. He always asking y. Should I be concerned?

Never ask "why" - (y) -  where her "ex" - (x) -   is.......He's not coming back  !!!!!

No probably not, maths teachers are supposed to be a bit weird like that.  LOL

Can y ask y his x left him?  

Maybe I can just say that I don't understand CPhills theory! I don't think it's any about your concern!