What if Jasper has been lying to the Cullen's since they met?

And know his BROTHER shows up injured in Forks and Jasper must tell the Cullen's the truth about himself and his past.

Will the Cullen's understand why he lied to them? will they forgive him?

Will Jasper's past cause trouble for the Cullen's?

And will his brother come out of the coma he was in when he was found?