First tab I've done, so just comment if you see any mistakes that need fixing.

Chords: C#  : x46664
        A   : x02220
        B   : x24442
        C#m : x46654
        G#  : 466544
        F#m : 244222
        F#  : 244322
        G#m : 466444
        

Intro:  C# A B C#m G#

Verse 1:C# 
        I was in the classroom after school
        A
        Working on the chalkboard once again
        F#m
        You were in your uniform standing by the door
        C#m                     G#
        When I saw you, saw you there

        C#
        You were wondering if I'd walk you home
        A
        Even though I lived on the opposite side
        B                                           C#m        G#
        I said, "Sure, I don't need to be home soon anyway, anyway."

Chorus: A            B
        Textbook love
        C#m       B F#
        Textbook love
        A              B     C#m
        Hold my little hand, baby

Verse 2:C#
        I started to wear my dad's cologne
        A
        Started combing my hair to the side
        B
        Anything that I could do
                            C#m        G#
        Just to keep your attention on me

        C#
        But I was just a phantom passing by
             A
        When you where on the track home with your friends
        B
        I was nobody at all
                         C#m     G#
        I just needed an answer, baby

Chorus: A            B
        Textbook love
        C#m       B F#
        Textbook love
        A              B     C#m
        Hold my little hand, baby

        A            B
        Textbook love,
        C#m                      B       F#
        You were the girl I was dreaming of
        A              B     C#m
        Hold my little hand, baby

Instrumental:
        C#m A B C#m G#m
        C#m A B C#m G#m

Verse 3:C#
        Never will I know what you saw in me
        A
        But surely you knew exactly what I saw in you
        B                                               C#m        G#
        Thinking back now, I'm sure that was the only attraction, baby

        C#
        Textbook love in the textbook style
        A
        Textbook girl with the textbook smile
        B                                         C#m       G#
        Textbook love, when I was on my way to redemption, baby

Chorus: A            B
        Textbook love
        C#m       B F#
        Textbook love
        A              B     C#m
        Hold my little hand, baby

        A            B
        Textbook love,
        C#m                      B       F#
        You were the girl I was dreaming of
        A              B     C#m
        Hold my little hand, baby

Outro:  A            B
        Lord, it's a shame, I know
        C#m             B        F#
        Thinking of how it could go
        A              B     C#m
        Hold my little hand, baby

        A            B
        Lord, it's a shame, I know
        C#m             B        F#
        Thinking of how it could go
        A              B     C#m
        Hold my little hand, baby

Some credit goes to the woman in the youtube video below, of which helped me work out a few of the chords
https://www.youtube.com/watch?v=Ka1LMTAeNPI#t=71