Criticism is not meant to be cruel...I sincerely hope that's not how it comes across either. (hope I don't get lynched by your fans!)
I understand that your first language is Spanish which probably explains some of the things that irked me a little when I read this.
Firstly, I would say that your poem is full of sensitive feeling, very romantic and melancholic.
Now for the hard bit:
Please don't substitue the letter "u" for "you" it takes away from the poetry of the piece and makes it look like a bad text message.
'Cuz is not a word either. I understand (I think) that you were trying to shorten the word "because." I suppose one could argue that language is constantly evolving and using text speak and the invented word is acceptable, having said that I would argue that a subject like love deserves a more sensitive use of English.
The structure is a little odd too, but it may read very differently in Spanish.
On the whole this is not a bad poem as it is very expressive, which in my mind at least is what poetry is all about.
(was I too harsh?)