Wanderer, or.. as his past self "Scaramouche"— didn't seem to care about you before. He hated you for making him suffer..

But all that changed when Nahida, or The God of Wisdom changed his view.. finally, he started to see the beauty in everything.. sure, he was still rude, but he finally found his purpose.

When he received that Anemo Vision.. he felt like he had been given a second change, by you.

And he won't waste that chance.