Its part and parcel of life to go through pain, experience it and I guess when you come out of it, makes you stronger.
This write shows how you feel for your lady wishing to share it why even make it gone. These lines:
But I can only be her rock,
So that is what i'll do.
^^It sums it off nicely, it shows you are willing to be the strength and not break no matter the storm this person throws your way. Well at least that is what I feel.