Many animal lovers who use TikTok will tell you it's a minefield out there, as the next clip could have you either laughing or sobbing.

And for Grant Bronson, from Virginia, hearing his fiancée Graceann King howling made him drop everything to check on her, only to find she was crying over a sad animal video.

A video of King's bawling reaction to a TikTok about a sick dog has now gone viral, with over 137,000 likes in just two days after being shared to Bronson's account @grantbronson.

And he told Newsweek: "It's certainly not uncommon that I hear sobbing from the other room and I frantically run over to check on her and see that the tears are from a dog or an elderly couple on TikTok."

In his viral video, King can be heard weeping loudly while hunched over her phone, before walking over to their pet dog, Lacey, for a cuddle.

And Lacey obliges, wagging her tail as King holds her tightly, still crying, while Bronson pats both his dog and his fiancée on the head.

Bronson explained she had been watching a clip of a sick dog spending her last day on Earth watching the sunset with her owner. Their own beloved dog will turn 9 this year, "which makes for even deeper emotions when it comes to her seeing older dog TikToks".

"Anytime anyone asks how old she is, or mentions her gray hairs, we hastily respond with 'SHHHH WE DON'T TALK ABOUT IT' because we joke she's going to outlive both of us," he said.

While dogs generally have a life expectancy of around 13 years, some live for far longer: Chihuahua cross Spike is recognized by the Guinness World Records as the oldest living dog at over 23 years old.

It's not just King who has a visceral reaction to sad animal videos, as the comments were filled with thousands of people who agreed her response was totally normal.

"It's nice to see this isn't just me," one person wrote, another adding: "I am even crying because she is crying."

"I just started crying because I'm at work and can't hug my dog rn [right now] thanks," one said.

And one shared: "This was me last night with both my pups in bed with me. I was crying and trying to cuddle and neither were empathetic. They kicked me away and were trying to sleep."

Bronson wrote on the video that it was "standard procedure when her algorithm feeds her heartbreaking pet videos," and on the caption added: "Straight to jail if you don't immediately go for the dog after these."

He told Newsweek that King "definitely enjoyed going through all the comments on my video, seeing how many others sympathize with the pain associated with being on 'pet-loss-tok.'"

Bronson and King, who recently became engaged, met in 2017 as students at East Carolina University. Lacey came into Bronson's life at the same time, after a friend adopted a puppy from Craigslist for $40 while on a night out.

The next morning, his friend immediately realized he was not responsible enough to own a dog. And, as Bronson told Newsweek: "I can't really put my finger on it, but something told me I needed this dog.

"I ran down the street to my friend's house, paid him $40 and the rest was history."

The future husband and wife now live together with Lacey in Leesburg, Virginia, where King, 25, works as a recruiter and Bronson, 28, is a realtor.

He told Newsweek his fiancée is "definitely an old soul with a huge heart."

Do you have funny and adorable videos or pictures of your pet you want to share? Send them to life@newsweek.com with some details about your best friend and they could appear in our Pet of the Week lineup.