Have you thought about couple's therapy? It sounds like you and your partner could use some help in communicating clearly with each other around what you want/need/expect from one another. Having a newborn baby, as wonderful as it is, creates a lot of new stressors on a relationship. It can also create dramatic changes in your identity and self-image- when you become Mom, and are also a partner, sometimes women lose their sense of themSELVES as separate people.
I would suggest that you both seek out a psychologist who can work with you and your partner as a couple, and also work on rebuilding your sense of self through connecting with friends, getting out by yourself, exercising, etc.