<human>: Can you provide a brief rundown of the text in within 3 sentences?

My wife told me she wants to leave me. I'm six months in to a 12 month tour in South Korea. She says this last six years have been terrible and all I ever wanted to do is play videogames and sit in front of my computer. Which is true, I haven't been a good husband, shes tried over the years to try marriage counseling and renewing our vows and I've always blown it off. God, I'm such a fucking idiot

I'm coming home next month for about 3 and half weeks. I've been trying to talk to her but shes so angry at me, and cold, I know I deserve it. We have two kids, we don't want a custody battle or anything, she wants to keep them for the school year and I get them for the summer. I can't do that. I can't be alone, not again. I won't go to my next station alone, it's too much.

What can I do? I can change, I never took it seriously enough while it was happening but I see it now, I've been a terrible human being. All I need is one last chance, but she says done with it. Please, help me
<bot>: I'm a fucking complete moron. My wife wants to leave me because I've done nothing but sit in front of a computer screen for six years