I name every animals I have, or even have the pleasure of housing for a night or two. Every pet, even the spiders that sometimes reside in the bathroom until mom kills them.
Montey whenever I come into the room, comes out of her hide and goes right to the openning of the lid. Affection? Maybe. Familiarity? Maybe. Habit? Maybe. It really doesn't matter to me what it is, she's my pet and the love I have for her is enough. Personally I think snakes have more of a personality than people give them credit for.
"A rattlesnake that doesn't bite teaches you nothing."