You know, I have a leucy black rat that is exactly the same way. Mine is a male, 2 1/2 years old, and has always been very "social" as far as snakes go! Whenever I enter the room, he pops out of his hide and checks out what's going on... and he does seem to enjoy being handled and exploring the room.
He has multiple hides in his cage of all different sizes, uses them frequently, but doesn't really stay put in one place for very long. Eats like a champ every week, and has perfect sheds.
One thing you might want to check is the temp gradient in the cage... I keep mine at 74-75 cool side and 80-81 on the hot side under the basking site. He seems to do very well at these temps. If your cage is too hot or cold overall, your snake may be looking for a more comfortable spot. Do you have a hide box at both ends of the cage (hot and cool)?
I dunno - if everything seems OK otherwise, I wouldn't stress over it TOO much - I think some ratsnakes are just more social than others. Best of luck with Noodle!
-----
::i believe in joy > http://www.winds.org/nekomi/hope.html
::my homepage > http://www.winds.org/nekomi
My Growing Zoo:
1.0 Husband (Byron)
0.1 black cat (Shade)
0.1 rescued stray grey cat (Ghost)
2.1 rescued feral tabby kittens (Big Boy, Frosty, and Starlet)
0.1 Brazilian Rainbow Boa (Zia)
1.0 Leucistic Black Ratsnake (Houdini)
1.0 White-Lipped Python (Midas) - RIP, poor fella 