Taylor Swift and Calvin Harris confirmed the dating rumors just last week when they were seen kissing at the Billboard Music Awards, and they continue to spend happy, quality time together.

Swift and Harris were spotted leaving her apartment building Tuesday night before sharing a romantic dinner at L'asso in Little Italy, People reports. The two were happily holding hands.

Swift looked amazing, as always, in a baby blue floral skirt with matching crop top, killer nude heels and her signature red lips. Calvin was a little more relaxed in jeans, a black T-shirt and a leather jacket.

 "They're really into each other," an insider revealed to Us Weekly. "Normally when Calvin parties, there are girls everywhere, but he's completely toned down and is just about Taylor. He's changed because of her - he's much nicer, a lot more calm. He's happy to stay home with her and not be on the scene."

The 31-year-old DJ is staying at Swift's Trbeca apartment while he visits New York City, and the two are enjoying each other's company despite their busy schedules.

"They spend a lot of nights watching Netflix and catching up on shows they never got to see," the insider continued. "He had no idea that she would change him so much."

With Swift recently starting her massive world tour for "1989," the two are trying to spend as much time together as possible between shows.