Critics believe that it is the journey of Lindsay and Halstead over time that viewers are caring about and romance is just one component of that.
They are two of the most popular, if not the most popular characters of “Chicago PD.” They do care about each other so much so that one is actually willing to put his or her life for the other just like what Erin did in the premiere episode.
Meanwhile, ever since Ruzek and Burgess broke up, they both feel awkward staying in the same room. But it was Roman who comforted Burgess during her difficult times since they have been partners for so long.
The broken engagement is also not a secret in the precinct in addition to the fact that Ruzek is also a close friend of Roman.
At first, Roman’s concern for Burgess was more like a big brother comforting his younger sister but eventually, feelings evolved out of it. It was actually Ruzek who realized that feelings appear to be developing between his ex-fiancee and his friend that he decided to let it all out in the open during the 19th episode.
But Roman did not deny the accusations because he does find Burgess attractive and that he has developed feelings for her.