You are my heroine! 3 months and not even 2 years old! No wonder you are struggling, without even considering your partner's pressure. He is probably mad someone has interfered with his habit but he will be back.
I would really leave to my parents' for a while now that he is not there. And I would spend time appreciating the difference in your life and your children behaviour (mainly the 2 years old) when he is not around.
3 weeks after delivery is really little and you must be exhausted. Making new human beings and keeping them alive is an incredible experience but as hard as it sounds. Whatever the circumstances I hope you keep reaching out to y our parents or whoever may be a good support for you, even if it is only a cup of tea/coffee with a friend/neighbor for 20 minutes.
