"They have been dating a while now," a source toldUs Weekly of the seemingly inseparable couple. "It is getting more serious as time passes. They really like each other."
The Bachelorette alum and Modern Family actress have been spending a great deal of time together recently and showing their affection for each other on social media.
Sarah just took to Instagram on Tuesday to gush about how her how boyfriend had made her 27th birthday on November 24 memorable and special.
"This one," Sarah captioned a black-and-white photo of the glamorous couple holding each other at a fancy restaurant. "@wellsadams took my birthday and made it in to an entire week celebration. No one makes me feel as special as you do. Hey... You're my favorite thing."
After taking the big step of celebrating Thanksgiving with Sarah and her family on November 23, Wells also surprised his girlfriend with a romantic helicopter ride to Catalina Island, which appeared to be an early birthday gift.
Wells posted a picture of the couple standing in front of a helicopter and wrote alongside it, "Top 5 ways helicopters are like Sarah: 1. They make you feel like you're floating. 2. Every moment with them is an adventure. 3. They make you feel like you're falling, in the best way. 4. They defy gravity. 5. They are really f-cking cool Happy birthday @sarahhyland. You're my favorite thing. Everyday should feel this good."
Wells also called the event "an amazing date."
As for Sarah, she shared an Instagram Story of the helicopter excursion with her fans last week, calling the sweet photos "vomit-worthy" and Wells the "cutest ever," according to Us.
Ever since going public with their relationship in October, Wells and Sarah have not been shy about PDA.
On November 13, for example, Sarah posted a photo of Wells and herself lying in bed with a dog. Both individuals appeared to be shirtless at the time, which sparked a little controversy online.
And on November 7, Sarah also shared a photo of herself wearing a tiny silver necklace that had Wells' initial of a "W" on it.
The ballad includes lyrics such as "Holding my breath / Slowly I said / 'You don't need to save me... But would you run away with me?'"
Sarah split from her ex-boyfriend, actor Dominic Sherwood, in August after two years of dating. As for Wells, the radio personality was most recently linked to Danielle Maltby from Bachelor in Paradise 4.