While you check out photos from the last 12 months via Facebook's "Year in Review," nostalgia hits as pictures from your Spain trip, reunion with a long-lost friend, and summer night spent at an excellent concert zip across the screen.

But then, the snapshot of you and your ex holding hands shows up in the slew of photos.

Suddenly, the year's trials rather than triumphs flood your mind.

Scenarios like that prompted Facebook to help "weed out" bad memories in its popular Year in Review feature, Keith Wagstaff wrote for NBC News. Now, Facebook chooses 10 photos for the review - but users have the option to veto them and choose others.

NBC News noted a case in 2014 that explains why Facebook made the change.

"Last year, Web design consultant Eric Meyer wrote a blog post describing how Facebook put his deceased daughter's photo at the center of his Year in Review," according to NBC News. "The post went viral, and this year Facebook is trying to avoid a similar situation by installing a set of filters."

So how does the social media site leave out pics users might not respond well to?

Facebook won't feature photos where memorialized accounts of exes are tagged, Lisa Eadicicco wrote for Time.

And Andrew Griffin wrote for The Independent those are the same settings Facebook uses for the "On this Day" tool.

In a statement, a Facebook spokesperson further detailed how 2015's Year in Review differs from past installments.

"We heard feedback last year that we need to do more to select the photos that are most enjoyable to people and make it easier for them to edit the photos they see and share in their Year in Review," Facebook's statement read. "So we've applied a unique set of filters to your Year in Review to reduce the chance we'll show you a photo you don't want to see. And for the photos that our algorithms don't catch, we're giving people control over the photos in their Year in Review. Any photo that we suggest that you'd rather not include can be easily removed or replaced, and you can choose whether you want to enjoy this experience yourself or share it with friends."

According to Time, the social network is also "testing a new feature that lets you filter out posts from your ex."