It looks like Mila Kunis' and Ashton Kutcher's engagement may be put on hold as the "Two and a Half Men" actor was painfully forced to put down his pet bulldog down.

According to the Daily Mail, the actor was spotted on Tuesday in Los Angeles International airport alongside his girlfriend after returning from a weekend getaway.

Ashton Kutcher, 35, still seemed to be torn up over his pet's passing as her sported a somber look on his face as his made his way through the airport with Mila Kunis.

The "Jobs" star wore black jeans, a white T-shirt and a knit blue cardigan while the 30-year-old beauty wore a purple bubble jacket, skinny black pants and black ankle boots that she accessorized with sunglasses over her eyes and a large black handbag slung over her arm.

[For photos of Mila Kunis and Ashton Kutcher at the airport click HERE]

Just a few days ago the actor was spotted looking distressed as he headed into the animal clinic carrying his bulldog. Kutcher held his pooch close as his girlfriend walked alongside him.

According to the Gossip Center, the couple was visiting the clinic to put the unhealthy animal to sleep in order to end its suffering.

Demi Moore's ex-husband appeared to have tears in his eyes as he carried his dog for the last time. Meanwhile, the animal looked noticeably frail and weak with his tongue hanging slightly out of his mouth.

Are you an animal owner? Do you dread the day your pet will die? Let us know what emotions you think Ashton Kutcher is going through after putting his dog to sleep in the comment section below.