<human>: So over the weekend my wife told me she wants to leave and move out. She explained that she is no longer happy with the way things are going and she needs to find her self. 

We have been dating since we were in our early twenties and we have many great memories together. The only issue we have had really is a poor sex life for the last couple years. She just has not been into it at all. 

I would sometimes bring this up, try and fix it or get upset when we were not trying to bring the spark back into our lives.  She used to be more worried about me leaving her or cheating on her due to this as she didn't think the sex was the biggest part of our relationship.

Over time, this changed for her and she needed that spark. We have actually over the last few months found more passion and the sex was coming back but maybe not enough for her. She never really tried to fix this. I always wanted her to but it never went that way. 

Anyways, she told me that she is no longer happy, she wants to move out but she still loves me and wants to be friends. We cried together for hours and I did/said what I could to have her stay. 

She has been thinking this over the last 6 weeks and I think she told me when she was all ready past the part of trying to fix it. 
She is unwilling to work this out, she does not wish to talk to anyone and gave my ring back. She said she needs to find her self and that spark again. Maybe in the future we can try it again but for now she wants space. 

At this time she is staying at home as she can't move out and sleeping in the spare bedroom. To be honest I want her there, I need her company but I know that is not healthy for my grieving process. 

What should I do? Can there be any way to fix this? This is day 4 and I am so lost. I have a ton of friends and family support.. But in the end. She is my best friend, my lover and my partner. I never thought she would leave me.

Could you distill the essence of the text into 1-3 sentences?
<bot>: My best friend, my lover and my partner left me over the weekend and I am completely lost. I don't know what to do or say to her.*****