GO GET HELP IMMEDIATELY!!!! Find a health professional and get help... So many people suffer from undiagnosed mental health issues now a days, I am bipolar and over the years have not been medicated, lets put it this way there where times that I count myself lucky that I'm here and still have my children!
I've heard those same voices in my head, my SO hates me or doesn't love me anymore my LO and I aren't bonding..... I will guarantee you your LO loves you more then the sun and stars honey!
Your SO is just that your SO he isn't there to make you happy, to save you to take care of you, you have to do those things yourself, just like you aren't there to make your SO happy or to save him, neither of you have the tools for that we are responsible for our own happiness, we need to save our self....
Go on line and find a group called the DBSA the Depression and Bipolar Support Alliance... You can join live chat rooms on different topics there are professionals who run the group who can give good advice...... They also have meeting once a week in most city's you can go to for free, listen, talk if you want to see that you are not alone.
I'm not saying you have Bipolar but usual if you have suffered more then one or two episodes of depression they diagnose you with Bipolar.... There is nothing to be ashamed of it's in the food we eat the chemicals, pollution they cause chemical reactions in the brain.....A least that's what I tell people! It actually runs in my family, I've lost an Aunt to it!
It's OK to ask for help to seek help it doesn't make you insane it makes you sane for seeking help to be better...
PS Just encase you couldn't find it