[He's this excited because he misses human contact. It's so rare to find someone likeminded, he'll take anything offered his way.]

Oh -- oh, that's just because...

[Oh, Steve's not going to like this part is he?]

Well. I -- was starting to show symptoms of the madness, back when I was making things for everyone... I kept having dangerous ideas. It was for the best that I stop spending time with you and everyone. I mean... Think about how many of them died because nobody rescued them in time.

[If it sounds like he's talking about humans the way some people scoff about stray cats, it's probably not wrong.]