Our halfway point is our most vulnerable—it’s full of exhaustion and lack of motivation to strive on. Runners feel it when they’re at the halfway point of a marathon. Nehemiah felt it from his workers when they were halfway through building the wall around Jerusalem (Nehemiah 4:10).

It’s this weak moment, this halfway point, that the enemy of our souls attacks relentlessly. Satan adroitly knows how tired our souls are. He knows how vulnerable we are to quit, give up, and chuck our marriages and families in the hope of finding something new.

The halfway point in our marriage is when the familiarity with our wives sets in. The honeymoon stage is long over, our job is most demanding, our bills mount up, and the kids need more time and money from us. It’s here that the enemy seeks to drive a wedge of discontentment between us and our wives, attacking ferociously. Seeking to kill and destroy.

How do we stay strong past that inevitable halfway point? By choosing to continue faithfully loving and pursuing your wife. Mirror the Lord’s steadfast, merciful love for us by continually choosing your wife amidst the...
https://allsinglesandmarrieds./2019/10/04/what-god-says-about-marriage/

OP, what is the halfway point and how do you know? Or are you referring to the seven year itch? Honeymoon phase lasts 1-3 years.