Credit: Roshan Perera/Splash News

The Voice coach Adam Levine and his Victoria's Secret model fiancée Behati Prinsloo ventured out for a romantic dinner date on October 1 — and while it seems like Adam pulled out all the right stops by taking her to Beverly Hills hot spot Mr. Chows, he didn't throw down for a rose when the couple was approached by a guy selling flowers on the street.

Poor form, A!

But Behati didn't seem too upset. In fact, the 24-year-old Namibian model was all smiles as she jumped in the passenger seat of Adam's car. The tattooed Maroon 5 rocker was also in good spirits, beaming at his special lady as they drove off together.

Considering Behati's already received the most important gift in a relationship — yes, we're talking about the amazing vintage rock on her svelte little finger — we don't think Adam's date night faux pas was too bad. After all, the life of a flower is ephemeral, but a diamond is forever.

Behati and Adam announced their engagement back in July and have been inseparable ever since. They're even looking to put down permanent roots in New York City. No word yet on a wedding date, but stay tuned for all the latest on these A-list lovebirds!

What do you think of Adam's date night manners? Should he have bought his lady a rose? Weigh in below!