Hello

I’m new here.
My wife (35) has told me she wants a divorce and that she isn’t happy. We’ve been together almost 5 years and married for 19 months.
So a little background.
My wife was told by a CPN that she possibly has BPD but she’s never been diagnosed by a psychiatrist.
At the start of the relationship, things were a bit difficult as I done somethings that could be seen as emotional infidelity. I realised my mistakes and ever since have never done anything like that and vowed to commit myself.
Lately we’ve been trying for a child and unfortunately we’ve suffered multiple miscarriages. She blames herself and sometimes me for these although neither were our fault.
With Mother’s Day (in the uk) coming up, I knew she’d possibly be upset. I planned to take her out and have got her a card etc.
Unfortunately what I didn’t plan was for her mother to message her and upset her. Her mother has always been someone who only thinks of herself and never gives a crumb of comfort or empathy to anyone else. She disappeared at our wedding and has offered no compassion to my wife, whilst she was going through these miscarriages.
Since that text message, she’s decided she no longer wants any contact with her mother and has cut all ties with her (something I support). However she’s also turned to me and says she doesn’t feel the same about me anymore. That I have traits that are similar to her mother and that I remind her of her. She says she wants a divorce and wants to move out.
She thinks I only got with her as a rebound relationship and I’m only married to her to tick a box in my life, that I don’t love her or care. She points out every single bad thing I’ve ever done/said and has been criticising everything.
I don’t want a divorce. I love my wife and care about her deeply. I want to start a family with her because I believe she’s an amazing woman.
We’ve been through scenarios before where she says she wants a divorce, brought up right after our miscarriage. This one seems a little different as normally the divorce threat disappears after a day. This has been going on for a few days.
I need advice