Sugarland's Kristian Bush and Jennifer Nettles may be on separate career tracks now, but Bush maintains that their relationship is still good, even if they aren't in contact as much as they used to be.

Not only are both of the artists working on solo careers, but Bush and Nettles are both parents, and Nettles recently wrapped up her Broadway debut as Roxie Hart in Chicago. With so much going on in both of their lives, Bush says that they don't talk as much as they used to, but he's really excited for Nettles' success.

"We don't communicate as much as we used to, because of just life and babies ... I remember asking her, 'Do you want help [on your album]?' And she was like, 'No, we can't do that because then we'd make a Sugarland record.' Oh yeah, you're right!" Bush tells Rolling Stone Country. "So, the nature of it right now is me [being] so proud that she's chasing a dream. This thing on Broadway, she's been chasing for a long time. I've listened to a lot of 'no's happen on the other side of phone calls next to your friend in a car. It's hard to hear someone go through that kind of disappointment. So to watch her triumphantly do it, it's a big deal."

When Sugarland stopped making music together, a lot of fans questioned what happened, but Bush says that it wasn't anything more than Nettles taking a look at where her life and career were headed in the near future.

"She had come to me about it first. She said, 'Hey, I'm pregnant. We're going to need to adjust the show, but we're going to work all the way up until [I have the baby]. And I'd like to do a solo record,'" he says. "I was really excited for her to be a mom, and people were going to get a chance to hear her the way I heard her before she was in the band. She had a career ahead of [Sugarland]."

The split also gave Bush a chance to work on some solo stuff, which he wasn't expecting at first.

"I knew pretty quickly I was going to have some time. I wasn't even thinking about a solo record," he says. "But pretty quickly, a strange thing started to happen: I started to write more than I've ever written ... "Love or Money" came out as a lark; it was a result of doing the C2C international country festival."

While Nettles and Bush are both doing well as solo acts, Bush is quick to point out that he hopes Sugarland isn't totally over, saying that he has "very high hopes" for a reunion.

"Sugarland was a band we started to try to make things better. It was in the aftermath of 9/11, it was in the aftermath of my mother dying ... there was a lot of weird stuff that had gone on that made you want to start something good," he continues. "We're not done doing that. Creatively, I'd be curious to see now what we're going to make when we hang out together again, because we have so much more life experience."

Bush released his first solo album, Southern Gravity, on April 7.