Life hangs in the balance!?

I have just got a job on the airlines that is due to start in may, i put a deposit down on a flat near to the airport, to live by myself because my partner has been cheating.but then i realized i had said i had go no unspent convictions on the airline application and that i may have 1. I went to court last year and i am waiting to find out exactly what i got but it is either a bind over or a 12 month suspended sentence,either way i DO have a criminal record, i rang the airline to tell them about it and they want me to send them a copy of a disclosure and they said they would take it from there. In the meantime the letting agent wants to ring the airline to confirm my employment. Arrrrrrrgggghhhhh, if the airline say they dont want me anymore because they think i lied on my application, i will have no job, therefore no house, and stuck living in an unhappy relationship, and i will be so devastated, and may just leave and go to America! is this the right decision