I believe it might be the sentiment of caring for something like family that may entice someone. Though, I wouldn't say that psychic types are essentially pets, since there are quite a number of them that have human intelligence. It may be that he just feels lonely, and surrounding himself with cute little creatures makes it less lonely.
[She shrugs. God, that psychobabble Rose dabbles in rubs off on a woman after a while.]
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[She shrugs. God, that psychobabble Rose dabbles in rubs off on a woman after a while.]