I’m glad your son is on the mend and that in his time of need your exah was able to step up and be sober to help him.
IF exah could stay sober I'd have a ticket outta here but there are no guarantees.
But I am concerned that you are still allowing your ex to have control over your future happiness. If your happiness with a new life relies on the sobriety of someone else, it’s like you are still stuck living that old life aren’t you?