This is one of the guitarist play this song and avril play the other way here at the intro he starts at the 10th and and then moves up a string.

Also not an easy song to tab but here it is……
you may have to fill in some of the missing palm muting and wot have you but its real easy to pick that up from the song
(….): palm mute
xxxx: scratch

Verse(intro)re’s not much goin’ on today’
G] -12--7-7-7-7---7-7-7-7-- 10-  5-5-5-5---5-5-5-5----------------------
D] -12--7-7-7-7---7-7-7-7---10---5-5-5-5---5-5-5-5----------------------
A] -10--5-5-5-5---5-5-5-5---8----3-3-3-3---3-3-3-3----------------------
E] ---------------------------------------------------------------------

Verse add on: ‘ Monday’s comin the day I hate’
G] -10-10-10-10-10-(10-10-10)---9--9--9--9--9--x-x-x-------
D] -10-10-10-10-10-(10-10-10)---9--9--9--9--9--x-x-x-------
A] -8--8--8--8--8--(8--8--8)----7--7--7--7--7--x-x-x-------

Bridge 1:  ‘Sit on the bed alone Staring at the phone’
G] --------------
D] -3--2--3--2---
A] -3--2--3--2---
E] -1--0--1--0---

Fill 1 (comes just before the start of the first chorus):
G] -11-12-13-14-14---
D] -9--10-11-12-12---

Chorus: 'He Wasn’t what I wanted what I thought no'
G] -7777777777777777------------------3-7777777777777777----------------------
D] -7777777777777777-5555555555555555-5-7777777777777777-5555555555555555-----
A] -5555555555555555-5555555555555555-5-5555555555555555-5555555555555555-----
E] ------------------3333333333333333--------------------3333333333333333-----

Break 1: ‘ hey hey hey hey’
G] -(777777777777777)-57-(7777777777777777)---------
D] -(777777777777777)-57-(7777777777777777)---------
A] -(555555555555555)-35-(5555555555555555)---------

Fill 2 (just before the start of the second chorus):
D] -x-x--
A] -x-x--
E] -x-x--

Bridge 2: ‘ na na na na na, we’ve all got choices….’
G] -5---7------9-99-5--(----)----
D] -5-2-7-5-55-9-99-5--(----)----
A] -3-2-5-5-55-7-77-3--(-X4-)----
E] ---0---3-33---------(----)----

Break 2: ‘uh ah, uh uh uh uh uh ah’
G] -(77)-77-(77)-7----------------(77)-77-(77)-7------------------
D] -(77)-77-(77)-7-(55)-55-(55)-5-(77)-77-(77)-7-(55)-55-(55)-5---
A] -(55)-55-(55)-5-(55)-55-(55)-5-(55)-55-(55)-5-(55)-55-(55)-5---
E] ----------------(33)-33-(33)-3----------------(33)-33-(33)-3---

Song Structure:
Verse x 4 and a half
Verse add on
Bridge 1
Fill 1
Chorus
Break 1
Verse x 3 and a half
Verse add on
Bridge 1
Fill 2
Chorus
Break 2
Bridge 2
Bridge 1 (palm muted)
Chorus (palm mute first bit) x 3
Bridge 2