Let’s review: Your mother comes to help you out by going to your apartment and, because she locks the door for her safety and has to manage the child as she comes to unlock the door, she is verbally abused by your husband. Further, instead of being grateful, he gets angry and verbally abuses you. More than that, he doesn’t apologize directly – he leaves a voicemail, and only because you’ve threatened him.
The money and anger issues paint a picture that suggests you should see someone at the local women’s center for legal and therapeutic help. The fact that he has not managed money well, that you had to pay for everything, that he can’t regulate his anger, can’t be thankful for what others are doing to help, and isn’t invested in fixing these things isn’t a hopeful sign for the relationship as you have presented it.
I would find out how to protect yourself financially and emotionally and what your options are for dealing with a man with these issues.