Ohh, I really like the implication here that Rumlow did shit like soothe Bucky after a nightmare. Yeah, let's talk about Rumlow taking care of recovering!Bucky during his latest captivity. idk if it works with how drugged Bucky would have to be, but Rumlow could even steal whatever meds he's supposed to be on -- to combat anxiety, intrusive imagery, etc. Sure, Bucky's recovered and stable enough to have been willing to work with and talk to Rumlow in the first place, but that doesn't mean his trauma is gone, duh, and it might manifest especially in such a stressful situation. Rumlow creepily helping Bucky through a panic attack??

I also like the idea that in the aftermath certain issues, phobias, or triggers that Bucky might have successfully wrestled down would redevelop -- or wholly new ones would appear. Or both. Both is good.