sorry about your sitch. It sounds like you know what to do to get started here. One thing I noticed that doesn't make sense is why would her lawyer contact you first? Don't they file and serve first? Maybe your W just said that the wrong way.
The antidepressants thing is something I learned about from Steve's sitch. They may or may not play a factor here. I'd be worried about an OM too just given how long you've been at this.
H 34 W 29 BD 3/12/18 Divorce Busted Spring 19
It is not things that bother us, but the stories we tell ourselves about things.