i wouldnt be drinking with her. i quit drinking with my ah ...have stopped for like 8 months give or take now. when my ah offered alcohol i said no when he suggested drinking i said no when he asked for us to go out and drink i said no.
i stopped joining him and enabling him and started making it about him.
when i stopped drinking with him it began to be about how unsual and what a problem his drinking is instead of feeding him denial because i too drank and allowing him someone to blame for it...like i wasnt helping hy drinking with him.
not saying you cant have a drink but i wouldnt let her know.
anyhow good for you for seeking means for yourself and not counting on her to be there for your son. shes in no shape to be.