congratulations on your lovely newborn baby
my mum came to stay with me when I had my first, not my second, but I wish she had, get some POSITIVE support in place honey,
don't wait up for him, it is pointless, he can't do it, it appears that he WILL drink, and therefore he WILL lie, neither you nor your children need this, but until your hormones have stabilise and you have healed and are less tired it will be hard to make your decisions.
I cannot remember how many times I begged XH just not to lie, and he agreed, which was just another broken promise.
Is there anyone you can call on to help with some of the day-to-day stuff that a partner should be shouldering?