Don't know why people complicate so much over this song.
Standard Tuning does the trick.

Intro\verse:
G--------------------------
D--------------------------
A----11/4-----------6/4----
E--------------------------


"Falling even more in Love..."
(Chorus) x4
G--------------------------
D---------4~---------------
A-----4~-------------------
E--6~----------------------

Verse: 
x6
G----------------------------
D------44--6---------43------
A--444-------4-444-----4-----
E----------------------------

Chorus:
x4
G--------------------------
D---------4-44---43--------
A-------4-----------4------
E--6-66--------------------


Bridge:

"There's nothing else to lose"
G----------------------------------------------
D------6---------------------------------------
A--4-44--4-4444--------8-6---------------------   x2
E------------------666-----666-666-------------

"there is nothing else.."
G----------------------------------------------
D---------------------------------------------
A--444444-666666--8----------------------------   x2
E---------------------66666666-----------------

Intro/verse
verse x4
chorus x12
ends on a C# 

hope it helps! fills are missing and for your creativity :)