Apologize to your Wife for hurting her with a message and ask for her forgiveness. You can share/send these messages via Facebook, Whatsapp, Twitter etc.

Baby I didn't do it on purpose, 
I regret from my heart 
Can't stay without you 
Can't stay apart 
Please forgive me now 
And, end this part 
I am sorry!

Mistakes do happen in life 
And you learn from the same 
As I did it without your name 
It was my mistake 
So I am sorry for it 
Forgive me!

Whatever happened was because of me, 
I was a fool to not see 
I really repent from heart 
Let's make a brand new start 
I am sorry my love!

I have cried because of you 
I know I have lied because of you 
But believe me I won't repeat again
I know it all and I won't pretend 
Because I so love you!
I am sorry!

I just want to tell you a sorry 
Because I did hurt you 
And, it was my entire fault 
Please see this as a default 
I am sorry!

Sorry dear for causing hurt 
Sorry for tears in your eyes 
I know I was fool
And not really wise 
I regret the same 
I am sorry! 
I take the blame!

If you love someone, 
That person will love you back 
And melt the heart for you 
So, my love please forgive me through 
I am sorry!

Big lies or small lies 
I know that I did break your heart 
So, sorry my dear 
Please bring that smile 
Because you are my life only cheer 
I am sorry!

Sorry is a small word
 
But the meaning is deep 
It makes me weep 
As you are not talking to me 
Please forgive me! 
I am sorry!

Get that smile back 
That was my grace in life 
Get back my pace in life 
Please do it my pretty wife 
I am sorry! 
Forgive me!

I am extremely sorry for what I did. But at the same time, I also want to say Thank You for being my wife, because you always show me the right path and correct my mistakes. Hope you forgive me this time too with your big heart.

My love, I am deeply apologetic for hurting you. But you must know that I realize my mistake and that I promise to never repeat it. Please forgive me.

I know now what it feels when the person you love the most is hurt. I am so sorry for disappointing you, baby! Please forgive me and give me a chance to make up for this.

I know that there is no forgiveness for the kind of mistakes I do. But if you can forget my mistakes and give me a chance, I'll make everything as good as new. I'd start everything all over again and make you happy.

Baby, you're the best wife one can ever have, and I just want you to know that I feel extremely sorry for what I did. Please forgive me.

Darling, what I did is something that I am very ashamed of. And I promise to work on my mistakes to never do them again. Please stop being upset, because seeing you sad like this is the worst feeling ever.

I have wasted precious moments of our relationship by making you upset rather than making you happy or loving you. I am such a fool. But I promise to make up for all the lost happiness by working on my flaws and filling your life with love and joy again.