Sans
Happy but sad that his little girl it growing up too fast

Fell
Pissed. He doesn't want you to get older and just stay small forever

Swap
Overjoyed! He cant wait to see grown up!

Error
Sad...He loved you when you were small and so clueless about everything

Ink
On the fence. Yes,he wants his daughter to grow up but he enjoyed you as a baby

Nightmare
Same as ink he is kinda on the fence of you getting older

Dream
He was thrilled! He can't believe how old you got so quick

Blackberry
Same as Fell, he thought that you would stay a baby forever and no he has to keep you from perving boy's

Horror
Beyond angry, not only is his baby girl getting older but now he has to protect you from boy's 

Cross chara/Sans
Chara was very happy about you getting older but cross on the other hand... he wasn't...lets just say it took three tranquilizer darts to calm him down..

Dust
He was chill about it,but secretly he was planing to kill every guy that has ever fallen down