Rubicon tab by Milburn

Tabs

Intro:

E-----2-0-2-----2-0-2s-7-5-2-5-0-----0-|
B-0-3---------3------------------3-0---|
G-----------3--------------------------|
D--------------------------------------|
A--------------------------------------|
E--------------------------------------|

Instead of the last 3 notes you can play G, F#F#

First verse:

B minorBm
We must be shrewd or stupid,
G+G      F#F#
One of the two,
B minorBm
The Stakes are too important,
G+G     F#F#
For us to lose,
B minorBm
But he would have broke your heart,
G+G         F#F#
But she would have lead me down the garden,
B minorBm
They would always leave,
G+G      F#F#
Early in the morning,
G+G
No final kiss,
F#F#        G+G F#F#
No final warning,

Chorus:

B minorBm
Just as we're friends today,
G+G         F#F#
Tomorrow we'll be lovers,
B minorBm          G+G    F#F#
Never to be the same no more, no more,
B minorBm
We've crossed the Rubicon,
  G+G         F#F#
And we can't turn our heels,
B minorBm
So it's onto the breach,
     G+G         F#F#
Oh we'll have to teach ourselves, my love,

2nd Verse:

B minorBm
And I'll be telling tales,
  G+G       F#F#
If I, claim to be sure,
B minorBm
That this will last forever,
   G+G           F#F#
Just look at the way it has gone before,
  B minorBm
But he would have broke your heart,
  G+G       F#F#
And she would have taken me for granted,
B minorBm           G+G      F#F#
They would always leave early in the morning,
G+G
No final kiss,
F#F#      G+G F#F#
No final warning

Chorus:

B minorBm
Just as we're friends today,
G+G         F#F#
Tomorrow we'll be lovers,
B minorBm          G+G   F#F#
Never to be the same no more,
B minorBm
We've crossed the Rubicon,
  G+G         F#F#
And we can't turn our heels,
B minorBm
So it's onto the breach,
             G+G     F#F#
Oh we'll have to teach ourselves, my love.


I'm pretty sure that there is another chord within the song but i can't figure it out.
melody line played by the lead guitar in the second chorus is similar to the intro but