Hi I did enjoy reading this as its uplifting and shows your undying love for this person.
The only thing I suggest is writing because fully instead of bec. Also, there is an error on fogot - forgot.

I feel that this would read better if it was separated a little too, remember though only my opinion.

E.g.

"So now, I miss you not because you miss me but because you taught me how to feel the emptiness when you're not here.
I love you not because you love me but because you taught everything I never thought existed before.
I'm not supposed to love knowing my inadequacies.
I'm not suppose to care knowing it will never be enough but I love you anyway and

I will love you forever."

All in all, great write.

Em