Okay. With that line of “you make my heart race”, I was just trying to make an equivalent phrase for “to get excited.” The Japanese phrase was 心が躍る (lit. heart dances).
But that line was not meant to be like that (I should have seen ahead of time). I just am clarifying. You can still ship them if you want to. I think they would make a good team as Izaya said as friends. I personally enjoy their interactions.