Some easily fall for this because it is difficult to see it coming.
You justify spending time with that friend because you've known each other from back in the day.
You get that one person who is not your spouse you cry to and vent to, you become emotionally attached.
Soon, you start meeting up with this person frequently, this person begins to know about your smile, how your day is and what's on your mind; more than your spouse does.
You might feel a thrill talking with this new person since your spouse is old news, you've known pretty much everything about your spouse. Only a fool would abandon a marriage that has stood for years for a complete stranger.
Anything exciting you wish to do with a stranger, go do it with your spouse.
This kind of work schedule can easily push you closer to a work colleague and away from your spouse. Protect your marriage from this by putting your marriage out there.
Wear your wedding ring with pride, constantly bring your partner in the middle of conversations at work, "My spouse was telling me that...
The truth is, many married men and women don't get appreciated at home.
Don't do philanthropic acts alone, do it as a couple with defined boundaries.
Most of all, be a hero at home, to your spouse, your children. "The one with a shoulder to lean on" This happens when you start running to another person, especially when your marriage is facing issues.
Keep a photo of your family/spouse in your office and as your phone's wallpaper.
Above all, make time for your spouse, even as you work so hard.