poor unfortunate sould

Is it me or they are showing Killian lighter and ligther in each episode?

Even if it is short, ever since Poor Unfortunate Sould he smiles more, he grins more, even if they are talking about darkness, he seems lighter, as if the darkness is leaving him and he’s the one pulling into the light. 

In the goodbye scene, he is happy… he smiles, he pulls from that kiss with a big smile…