The outspoken "Girls" creator talked marriage with talk show host
"The idea of having a celebration that can't be fully shared among all the people in my life and all the people that we love just doesn't really feel like a celebration at all," the 28-year-old said.
"So until that's something that everyone can join into with no sense of being left out on any level — politically, emotionally — it's just not something that we're going to do."
The two-time Golden Globe winner and the musician have been pretty public about their relationship since they began dating in 2012 after being set up on a blind date.
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It's not the first time Dunham has spoken out about the topic either, and she made headlines earlier this year when she began wearing a ring on her ring finger.
"That ring that everyone was talking about is a friendship ring I wear" with "Girls'" executive producer and writer Jenni Konner, Dunham told E! News.
"I love my boyfriend, I'm very lucky to call him my life partner, but you will sooner see me pregnant with twins," she added.
Last summer, Antonoff addressed marriage and kids as well.
"It's hard to imagine when the right time is because things are so crazy at the moment," Antonoff said of marriage during his interview with New York Magazine.
However, the musician had a different outlook on having kids.
"It just seems like the most fun thing in the world. I've never met people who have kids who haven't looked me in the eye and been like, 'It's the greatest thing that's ever happened.' I think it's biological. I'm 30. I'm not that young, right? I'm not, like, 24 or 22. I'm no longer in the phase of my life where I talk about everything as in the future. Like, I'm in the future."