When you mention “it hasn’t always been easy” in your anniversary posts, what specific challenges do you mean?

I often see couples vaguely write “it hasn’t always been easy” in their anniversary posts on social media. I'm curious about the specific challenges or difficulties you're referring to when you say that. What were some of the tough times you faced together, and how did you overcome them? Your insights could be really helpful and inspiring for those of us navigating the ups and downs of long-term relationships.