Actress Kirsten Vangsness is engaged to actor/writer Keith Hanson.

The 43-year-old Vangsness is best know for her portrayal of FBI technical analyst Penelope Garcia on the CBS crime drama Criminal Minds and its spin-off series Criminal Minds: Suspect Behavior.

“He's the perfect partner for me and I feel like we evolve,” Vangsness told PEOPLE of her engagement. “When you're so into somebody and you get to just mush up next to them – that's the best part of it.”

She said that she was planning a Harry Potter / Chronicles of Narnia / dinosaurs / Doctor Who wedding and hoping to wear a plaid dress on her big day.

Vangsness previously said that she is “as queer as a purple unicorn singing Madonna.” She dated television editor Melanie Goldstein for seven years, two-and-a-half of which they were engaged.

“I was so in love with her,” Vangsness said, “but in terms of life growth, what we were both doing separately was just pulling us apart, not sexually, but in all other ways in terms of what your dreams are and what you want to go after and all that.”

She added that she doesn't identify as bisexual: “If I were straight, I would say I was, but I don't totally understand it myself. I don't want to have an answer to something that I don't really have an answer to.”