No... She spent years in the monster realm. Its time in the game world that didn't change all that much. So it didn't SEEM like she was gone all that long. But to HER she was gone long enough to basically grow up. I forget exactly how long she spent there though, but she deffinitely aged there. Her sprite even changed when you got her back to signify her maturity. So while she may still not be a woman yet, 'cause I just don't remember. She's deffinitely not a little kid, either in mind or body. Though her maturity might be moot considering she matured with monsters instead of humans.