I think it’s pretty normal that when the dynamics of any relationship changes feelings of insecurity happen along with all those others – resentment – anger –etc.
I think al-anon will help you find YOU and where YOU are at today in this marriage. Work through some of those resentments and insecurity with his new found sobriety.
You’ve got at the minimum 6 months of catching up with YOU and who YOU are today to do.
((hugs))