I've only seen one version of this which was on Youtube, they sang 'Don't Confess' and
song right after.
Im pretty sure this is right...
This is the Intro and it plays every now and then throughout the song.
-----x-------------x----x--------------x--|
-----x-------------x----x--------------x--|
-----9-Xwhatever---7----x--------------7--|
-----9-------------7----9-Xwhatever----5--|
-----7-------------5----9--------------5--|
-----x-------------x----7--------------x--|
"I don't know, are you alright?"
[ Tab from: https://www.guitartabs.cc/tabs/t/tegan_and_sara/trouble_tab.html ]
--------------------------------|
--------------------------------|
--------------------------------|
---7---------------5------------|
---7---------------5------------|
---5-XWhatever-----3------------|Xwhatever
"No matter what you do and what you say
I'll get right on right about you..."
then the chorus has the same guitar as below...
---x-----x-----x-----x--|
---x-----x-----x-----x--|
---7-----x-----x-----x--|
---7-----7-----5-----9--|
---5-----7-----5-----9--|
---5-----5-----3-----7--|
Im not 100% sure with this ^ last bit but it sounds right enough to me :)
Well i hope thats ok, Have Fun! :D