If It Was Caleb--Divergent alternative ending

Tris' P.O.V.

Tobias walks me up to the alter where a random person is waiting.  "Four,would you like to read your vows?" He asks and Tobias nods.  It kinda bugging me that they didn't say Tobias,but whatever.  "Tris,I knew I loved you as soon as you fell into the net.  You are brave,smart,kind,selfless,but not honest." Everyone laughs.  "When you climbed the ferris wheel I didn't follow because I didn't trust you.  I followed you because I loved you.  i Im so glad that I was there when you were hanging over the chasm in initiation.  I need you in my life and I can't imagine life without you.  P.s. sorry for throwing knives at your head." Everyone except Caleb laughs.  Caleb scowls.  Tears drip down my cheeks.  "When I first met you,I wasn't scared.  Intimidated,yes,but not scared.  I knew there was a softy in there.   You were always there for me when I needed you most.  There is no one I'd rather spend my life with.  I love you.  P.s thanks for not letting me get thrown into the chasm." There are more laughs and Peter just glares ate from the back of the room. "Do you,Tris Prior take Four to be your lawfully wedded husband for better or worse?" A single tear escapes me eye.  "I do." "And Tobias,do you take Tris Prior to be you lawfully wedded wife for better or worse?" There is an eerie silence.  "I do." He says.  ",By the power invested in me,I pronounce you husband and wife.  You may kiss the bride." Tobias dips me down and kisses me.  We walk down the aisle and head to the reception.  When we get there we play our wedding song, Unforgettable by Thomas Rhett.

It was the 14th of October
And that t-shirt off your shoulder
I was drunk, said I was sober
And you said "yeah, right"
We were talkin' for a minute
Then some guy tried to cut in
You took my hand and we pretended
Like I was your guy

Oh, and I tried to guess your middle name
For thirty minutes bet we played that game

That mango-rita you were drinkin'
And that Coldplay song that you were singin'
And I bet right now you're probably thinkin'
That it's crazy I remember every detail, but I do
From your blue jeans to your shoes
Girl, that night was just like you
Unforgettable

We were dancin', we were buzzin'
Takin' shots like it was nothin'
Did the runnin' man, you loved it
Yeah, you laughed out loud
You brushed away your blonde hair
And you kissed me out of nowhere
I can still show you the spot
Where everything went down

Oh, I told you I was gonna marry you
You probably didn't think that it was true

That mango-rita you were drinkin'
And that Coldplay song that you were singin'
And I bet right now you're probably thinkin'
That it's crazy I remember every detail, but I do
I can still smell your perfume
Girl, that night was just like you
Unforgettable

Oh, that night was just like you, baby

I can taste the mango-rita you were drinkin'
And it feels just like it was last weekend
That we jumped in
Right off the deep end

That mango-rita you were drinkin'
And that Coldplay song that you were singin'
And I bet right now you're probably thinkin'
That it's crazy I remember every detail, but I do
I can still smell your perfume
Girl, that night was just like you
Unforgettable

From your blue jeans to your shoes
Girl, that night was just like you
Unforgettable

We danced to the song and when it ended,we took song suggestions.  This is the best night of my life.  After a few hours the room empties.