Her presence is probably the single most valuable thing to happen in his character development since his arrival here. While he has several characters that have impacted him, the presence of a Nepeta who could drag him out of his preconceptions and help him recognize the very visible results of the hemospectrum on those he cared for.

She's helped him finally attempt to deal with a few things (like Aradia), and while he's far from fully socialized, he's definitely a shade less awkward than he was long long ago.

All in all, he's still just as protective of her, and he loves his moirail quite a bit. It helps him have something stable in his life to anchor himself to, and it gives him a further reason to work hard to defend her from the potential of danger.