The best meetings for you are Al-Anon, Nar-Anon and CODA (Co-dependents Anonymous). Just google those plus your state and you will be linked to your city and meetings you can choose from.
If you are serious about staying with him for now then be serious about being the partner of an addict and do what all addiction doctors say you should do: attend your own meetings because you will without a doubt be a hindrance to his recovery (via enabling him without even realizing it) without being in recovery yourself, and you will also lose who you are in his issues. Your true self will disappear. Take responsibility not to let that happen.
Try to go to two meetings a week for as long as you are with him. Do not attend his meetings with him. Recovery is about boundaries and ownership of what is yours and what is mine, and separate meetings make this very clear.
Good luck and don't be afraid to post more as things unfold. People here call it like it like they see it but part of recovery is a willingness to listen with an open mind.