In love with this girl who has someone

Well, you have a few options.  You could tell her that if, at some point, she ends her relationship with her current boyfriend, you would love the opportunity to make her happy.  Or, you coulld just be her friend and wait to see what happens with the relationship she is in.  I am confused about a few things.  If this woman is so wonderful, what is she doing with a druggie who drinks??  You see one side of her, the side she dresses up and presents at work.  She may be very different in her own home on her off hours.  Be careful what you wish for, young man. I would let her know that you care for her.  Don't tell her that you are madly in love with her, just let her know, that if she chooses, you will be there to fill that place in her life.

Hi,
I believe that if one really wants something one has to be pro-active and do one's best to acheive it.   Tell her something like: "I know I am risking our friendship but I have to tell you the whole truth.... I love you very much.... I know that you have a boyfriend, and I also know that he is no good for you (drugs, and drinking....), and I believe that I can give you much much much more.... I want you to know that if and when you'll end those relations with him, I'll be willing to prove it to you". 
Best regards,

There is a dilemma:sometimes in our life,especially in younger years we are not aware of someone's faults .It happens to be in a wrong relationships,and there is possibility you to get to know to somebody about that ,but maybe is best solution keep being near by her with a hope she is able to solve her situation in a best way. It is amazing how powerful your love is,that i believe is source of our happiness

I think that if you really like erjust come out and say it.

Hello,

    You've made it very clear how you feel about this lady;" I would die for her if I had to." So, with this in mind, take a 'chance' and talk to her. It won't even kill you!! My point is that if you are willing to go to that extreme for her, taking the chance to let her know how you feel is nothing compared to loosing your life. What's the worst that could happen....you won't loose your life, but you might gain some understanding, relief, and possibly a relationship with someone you are in love with. Is your job worth not expressing yourself?

   Be fearless, be a warrior, and be confident in yourself. Know that no matter what the outcome, you have been impeccable with your feelings of love for this person. That is the best you can do; and from that point, you will know exactly how to proceed.

                                 With Regards,

                                                  Daniel

This young woman has every trait you want in a woman.  If you don't see any physical signs of abuse, or complaints from her, then maybe that's the kind of man she wants.  If looking at her makes you uncomfortable, then you need to distant yourself.  If she wants you, then believe me you'll know it.

Best of Luck