Amelia Gray Hamlin posted a birthday tribute to her beau, Scott Disick, on May 26, but many of her Instagram followers were not feeling the love.
While sharing a series of loved-up images with the "Keeping up with the Kardashians" star, Amelia gushed, "happy birthday my love. you light up my life, and make my world better. i can't imagine what i would do without you. thank you for being you. the most caring, loving, special person on this planet. i'm so lucky. i'm so blessed to have met you. i love you."
The model's fans refused to stay quiet, and most of them jumped all over the couple's 19-year age difference.
"Find you a man your age, what are you thinking, cause I'm thinking fling," one person wrote of Scott, 38, and Amelia, 19.
Several people did the math and brought up the fact that Scott was Amelia's age when she was born.
"Best babysitter ever," one critic said. Another simply wrote, "cringe."
A boatload of fans also brought up Scott's ex Kourtney Kardashian and speculated that he's still in love with her. The most vocal Instagram followers feel that Amelia's romance with the father of three has little chance of long-term success.
Scott and Amelia were first linked in October when they were seen arriving at Kendall Jenner's birthday party together. (At the time, he was fresh off a breakup from 22-year-old Sofia Richie.) Last week, Amelia's famous mom, Lisa Rinna, reacted to the romance on "Watch What Happens Live."
At the time, she had just recently met Scott.
"He's more handsome in person, and he was very nice," Lisa said. "We had a very nice time. He met [my husband] Harry [Hamlin], and there you go."
Lisa added of the age-mismatched romance, "It is what it is. It is what it is."