The 28-year-old actress re-sparked romance rumors with Powell after getting close to the "Scream Queens" actor at Julianne Hough's wedding over the weekend, according to People.
"Nina and Glen are dating," a source told E! News. "They were friends and it turned into something more a little while ago. They like each other and are seeing where it goes ... Glen is the best to her and treats her so well."
"They laugh all the time!" the insider added. "They are enjoying each other's company and the summer together so far. Both Glen and Nina are relationship kind of people."
Dobrev and Powell were first linked in January after they celebrated New Year's Eve together. The actor attended Dobrev's "La La Land"-themed 28th birthday party the same month.
"They have a similar group of friends and have been seeing each other on the low for a little while," a source told E! News at the time.
"Glen really likes Nina. She is completely his type of gal. They know and have met each other's families."
Dobrev previously dated her "Vampire Diaries" co-star Ian Somerhalder, and split from actor Austin Stowell in February 2016.
She discussed her approach to dating in an interview with Cosmopolitan in 2013.
"You either have chemistry or you don't, but a lot of what attracts me is a guy's mind and humor and talent. I need to get to know all those things before I fall for someone," the star said.
"I'm not a one-night-stand kind of girl. I'm a relationship girl."
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