The story reminds a lot of the old SF movie "Enemy Mine", which in turn was based on a novel, about two fighter pilots, a human and an alien, who crashland on a inhospitable alien planet after a dogfight. The only difference was that the alien was a reptile like being and they became friends instead of lovers. The alien did give birth by self-fertilization and died shortly thereafter so the human pilot had to raise his child as his own. Go check it out, it's a pretty good movie.

Having said that, I like this story as well and the catboy is very cute. Can't wait to see more.