I think we are looking for the same book. One that I’ve been looking for a long time. A bit of what I think I remember was that he meets this couple who he’s unaware are his future self and wife. Both are nice to him and he develops feelings for the girl which his future self notices and understands seeing as he’s married to her in the future. I think there was part about a war game between countries where any move results in a loss as everyone just ends up nuking each other. Where the right move is to not play at all. I know this is pretty much the premise of the book “The War Games” [...]

[...] but I could have sworn it’s part of this book. I did not finish the book so I don’t know a lot of the details. I’ve been looking for this book for so long and all I know is that this book was published before 2003. I hope you find it because I’m really looking forward to finishing it.