Wedding bells FINALLY rang for Dawson (Monica Raymund) and Casey (Jesse Spencer) on the fall finale of Chicago Fire, which also happened to be the show's landmark 100th episode. Not literal ones, exactly, since the couple opted for a simple courthouse wedding (complete with their Firehouse 51 family, of course), but Dawsey are finally, officially married.
"It only took five years," Raymund tells E! News of the milestone in her character's life. "We've been going back and forth for so long in the relationship and now it's like, 'Ah, okay.' We've got a solid union happening. Nobody has to worry anymore if they're going to break up or not. We're good to go."
But that newlywed bliss might not last for long, especially now that the birth father of their adorable foster son, Louie, has returned—and declared his intention to get his son back. Dawson and Casey were on their way to adopting the cute little boy, but come on—it couldn't be that easy, could it?
"I feel like this is a storyline that so many working mothers can relate to. …My mom was a professional mom, and how lucky was she to be able to do that? But when you have to not only be a mother but also provide for your family, there's nothing more difficult or noble than that," Raymund says. "I feel like it's going to be really hard for Dawson because all she wanted was to be able to have a child, and we know that a couple seasons ago she had a miscarriage. It didn't work out for her biologically, and now here's an amazing opportunity to be able to become a mom as an adoptive parent. And then to have that potentially taken away from her is devastating."
The adoption drama will also take a toll on the brand-new marriage, though it might help unite the couple even more.
"I think that it's going to affect [their marriage] greatly," Raymund says. "This is something that they both want in their family. It's an important time in their lives right now, especially as newlyweds. We are finally on the same page. We finally both want the same thing. I think that this potential adoption not going through and potentially having Louie taken away from us, it's incredibly devastating and difficult. Either it's going to rip them apart or it's going to bring them together. We'll see."
But don't get too worried: "I think that we've covered the ripping-apart phase, and I feel confident that we can see Dawson and Casey find their meaning again," she says. "It may be difficult. It won't be an easy ride, but they're in on this. They made a commitment to each other. I think their word and their commitment to each other is the most important thing that they have."
Chicago Fire returns on Tuesday, Jan. 10 at 10 p.m. on NBC.
(E! and NBC are both part of the NBCUniversal family.)