Unconditional

adjective

1. not limited by conditions; absolute: an unconditional promise.

2. absolute 

My love for you was and is. It didn't matter if you were happy, sad, mad, I loved you. It didn't matter if you did something I didn't like. I loved you. It didn't matter of you did something to upset me. I still loved you. Nothing you do or did could make me stop loving you. 

Because, my love for you is...

...unconditional.