I'm happily married but we've only been married for 1.5 years and together for 3.5 years. I want to avoid any marriage deathtraps, so I read this and r/divorce sometimes to see where people went wrong.

Delete if this isn't allowed, but I was wondering when/where things started going wrong in your relationship? What could have saved it? If you lost attraction to your wife, could anything have prevented that?

This question is mainly for non-extreme situations (wife cheated/became an addict/was mentally ill). TIA!