Kristin Cavallari believes she’s dating a “Heath Ledger” lookalike.

Kristin Cavallari and boyfriend Mark Estes were spotted walking hand in hand and all smiles during a date night in Los Angeles.

Estes, 24, was reportedly outside on Saturday, March 23, when he yelled: “You look like…” TMZCavallari, 37, interjected “Heath Ledger.”

Cavallari and Estes first dated last month when they were caught on camera TMZspending time together in Mexico.

Cavallari later posted a statement on Instagram confirming she was in a relationship with Estes.

“He makes me so happy,” Cavallari wrote in a February post with a photo of Estes, who reposted the post on his Instagram Story and Two red heart emojis were attached.

The relationship didn’t go over well with fans, and the couple also faced backlash because Estes was 13 years younger than Cavallari. However, these criticisms don’t seem to bother Estes at all.

“She makes me happy and I make her happy,” he said. and!information Thursday, March 21, during an interview. “That’s what’s important.”

“To be honest, I’m not too worried about the critics,” he said of the criticism.

Cavallari, on the other hand, also believes that “age is just a number.”

“It’s what you go through your whole life, how you grow up. There’s a lot that goes into maturity besides age,” she said on the “Let’s Be Honest” podcast earlier this month.