Due to stubbornness (lack of communication), they argued.
People knew by taking a step back, things would resolve itself.
Unfortunately, people won't act this way.
Some people even say that tolerating means losing pride.

However, successful couples see through that. =)
Look on their problems which might be the reason to separate them.
Try to solve it together.
Trying to make it work together.

It's suffering,
if you are doing it alone.
But if both side are doing it together,
it would be a nice work.