Why does things always has to end up like this?

Yesterday i was missing him. Now my heart aches, like its gonna break into two.
I know that's all my fault for making you so stress.
I know you can't have a good sleep everynight in camp.
I know when you're in camp and i'm outside, you'll think alot.
I know once there's a scar, it won't be easy to forget or even remove it.
I know everyday you worry what i'm doing outside which you can't see and know.
I know that i've made you very sad and disappointed.

But

I know i love you alot and i'm willing to change to be a better girlfriend.
I know you'll surely think alot in camp so i kept my promise by staying at home and be a good girl.
I know that you're having alot of problems in camp so i'm willing to share your stress with you.
I know army life is very tough so i'll listen to everything you ask me to do.
I know that weekends are the only time we can spend together so i kept my weekends free.
I know you care about me that's why you say those stuffs.
I know you are heart broken about that incident so i promise to change and i have.
I know everything, my dear, i really do.
And i know i really love you alot.

I'll keep all the promises that i've made.