PLEASE HELP ME WITH THIS?!?!?

I'm trying to write a song from my heart and I've just been writing down random lines as I feel them but I need help to unjumble them so they make sense.

I can't bare to break your heart,

So i don't know where to start.

I grip these words between my teeth,

But I know they'll slip eventually.

I'm just trying to give your heart some peace.

They look at you and count the flaws,

As you try to climb those stone cold walls.

I try not to say anything wrong.

I'm trying to help you stay strong...

Then I dont know what else to put...

Sorry if it doesn't make much sense, it's about my friend who is in love with me but I would never go with him because of the first line... Can you help me out with it and tell me what you think of the lyrics? Thank you :)