Hey Snotty welcome to the forum! Not too many people here that are married. But Im sure some will offer some advice. Im not married, but I'll start with maybe comforting her and knowing her, understanding what it is exactly she is depressed about might be a start. Getting her to a counselor maybe, but helping her to make the right steps to get better might make the marriage stronger. Your son is 2? Could it be motherhood in itself? I have a 15 yr old, and wow, he can put a mental strain on me.
I dont know what to say other than trying to get her help, and support her through these times. Goodluck and welcome to the boards!
everything happens for a reason...beginning to wonder why.