No, no, no.
Oh, you bought a rabbit? That’s nice. Just one? Why? You do know that rabbits can’t be kept alone, right? But you’re buying a kitten next week? And don’t have money for a bigger cage so you can buy a friend for your rabbit? And your rabbit is “happy”? I don’t believe that. Here, have some links to useful information about keeping rabbits.
.. But you refuse to change anything about it, because you think it’s okay? Even though I send you multiple website about the fact that your cage is too small and rabbits need at least one friend?
That makes you an animal abuser, buddy. If you neglect your animal because you don’t know better is one thing. But refusing to change it, even though you know that it’s wrong, is abusive.