I don't know how to keep this short, so be prepared for a long read.

My wife 36F and I 36M have been together since we were 18. Half our lives. Our tenth wedding anniversary was October last year. We have two teenage kids, 16 and 13.

At the start of the month, my wife and I had a minor argument/disagreement in the morning, over how our 13 y/o son was eating his cereal. I went to work and knew she was still upset when I finished that evening (Can't remember quite how. Maybe she didn't respond to messages?) so I stopped at the shop and bought her flowers to cheer her up and to apologise. When I got home and handed them to her, her body language changed and she just kinda... overflowed?

The conversation that followed is a bit of a blur. I think maybe I was in shock. Basically she said she'd been unhappy for a long time and no longer loved me. We slept on it that night. I believe she slept on the sofa and I went to our bed.

We talked the next day and she reiterated what she'd said the night before. This conversation was cut short as she had to leave for work (she often works away for two or three days a week, staying in hotels when she does). She told me that when she got home, she would be taking some clothes and stopping with a friend. She was talking in terms of "I don't love you" and "we have to get divorced."

The next ten or so days were hell. I didn't sleep or eat much. My mum cancelled a holiday to come and stay at our house to help me pick myself up and look after our two teenage kids.

At this point, my wife gave me an ultimatum of sorts. She would come home if I accepted that the relationship was over. This was a painful thing to have to do, and to have to say to her, but I did it so she would be home with the kids. I still very much love her and having her nearby is calming even now.

Looking back now, it wasn't even that much of an ultimatum. Obviously I accept the relationship is over it she says it is. We're both in this marriage and if either of us want out, we're out.

So since then, she's been home. We're getting along great. Spending evenings reading together, listening to music, eating dinner as a family, laughing, watching TV shows. In some ways, we're the happiest we've been in a while. She hasn't spoken about divorce or any sort of escalation/change to our current situation in almost two weeks now.

She asked me to accept it over and I did because she's her own person and can leave whenever she wants, but she knows that I love her and want to start fresh if we can. I have changed the way I've been living. I'm spending more time with the kids, I'm learning to drive, looking at career progression, learning to cook. Basically trying to focus on myself and make positive changes that will help us however this ends.

I'm also trying not to read into things, but it's difficult when I feel there are positive signs. Would she be spending time with me like this if she truly felt nothing for me? Would she have come home at all when she had somewhere to stay elsewhere? We're not arguing at all, there's no anger from either of us.

I'm trying to make her feel loved and supported without being able to tell her I love her or give her a hug or a kiss like I usually would.

I know she's dealing with a lot. She has a busy stressful job, she's still grieving the loss of her mum four years ago, and she's slowly opening up about things she's been struggling with in recent years but has felt unable to talk to me about.

I suppose my question is: does anyone have any experience or advice on how I can help her and support her? I love her so much, and even if this ends in divorce, I just want her to be ok.

TL;DR I'm looking for advice or to hear experiences of people who have been in a marriage separation that has ended positively.