Dragon Froot Loops

Major spoilers ahead...

This is a common form of manga iconography. From this source: https://www.visuallanguagelab.com/jvl usually fuzzy circles/bubbles are used in manga to depict being in a dreamlike or fantasizing state. Examples here:

Source:

In the case of Yor and Damian I believe that these were being used to show that they were imagining what 'could be'; Damian a closer relationship with his dad, and Yor, a closer relationship with Loid. They were very intentionally placed there to represent a complex emotion.

Meanwhile, with Loid, they're suppressed, because he probably isn't intentionally thinking about how he loves his wife. But they're there. And this isn't the first time we've seen Loid with them, either.

In this scene, for example, he's waking up after dreaming about his mum because he's associating Yor with that comfort. And look at those orbs!

When we see yor being sweet through loids eyes (and we know this is through loids eyes because she has the same cuteified appearance as when we first saw her when loid was considering her to be his wife) she has them