Credit goes to ely_koptaire for the majority of the tab - 
they figured out the chord progression. I have simply added
the picking pattern I use when I play this song. It seems to
be the same all the way through, except a little break where
he strums the last C chord and pauses before continuing with
the picking pattern - listen to the song and you will get
what I mean. 

PICKING PATTERN:


 C        C        Am       Am       
E[-------0|-------0|-------0|-------0|
B[--1-----|--1-----|--1-----|--1-----|
G[-----0--|-----0--|-----2--|-----2--| 
D[--2---2-|--2---2-|--2---2-|--2---2-|
A[3---3---|3---3---|0---0---|0---0---|
E[--------|--------|--------|--------|
  F        F        C        C
E[-------1|-------1|-------0|-------0|
B[--1-----|--1-----|--1-----|--1-----|
G[-----2--|-----1--|-----0--|-----0--| 
D[--3---3-|--3---3-|--2---2-|--2---2-|
A[3---3---|3---3---|3---3---|3---3---|
E[--------|--------|--------|--------|

CHORD PROGRESSION (courtesty of ely_koptaire)

        C                           Am
V1      I don't know where you came from
        F                            C
        but I do know that I'm not alone
        C                          Am
        be sure that I love you darling
        F                              C
        even though sometimes we won't get along

        there's not a day that passes by, my dear

        that I don't think of the first night we spoke

        and those words are staying upon your skin

        along with that precious smile of hope

                C                            Am
CH              that's why I'm like wait, wait, wait
                F                            C
                don't you know I could be your home?
                C                 Am
                I'm like wait, wait, wait
                F                      C
                cause nobody wants to be alone

V2      lying there on the kitchen floor                (same as V1)

        were the last signs of a helpless soul

        and she knew that he would die right then

        and so she held him until the last breath grew old

        and so she cried as her darling slept

        in between her arms, slid to the floor

        and then she screamed out into the cold, cold night

        oh my God, please don't go

CH              she was like, wait, wait, wait

                I love you more than you know

                she was like, wait, wait, wait

                I don't wanna be alone

                oh, oh, oh, oh, oh, oh (ahem)

                that's why I'm like, wait, wait, wait