Feeling Depressed? Lets Talk

Some of you may approve or disapprove below. Everyone is entitled to their own opinions. Sorry if I appear to be selfish. This is out of my own heart.

I became friends with this person at work when she opened up her problems to me. Over the
span of somewhat 6 months, I became her confidant whenever she gets a problem with her family or boyfriend. I supported her in situations when she was being left alone or when she is going up against the world. Her boyfriend is an egotistic man which also makes things on her side difficult. I also offered financial support to her where the bf can't. (and I don't know why...) She's been thankful for all of my efforts which his boyfriend can't give. We'll talk day and night about how are things going on on our sides. I have never cared so much for a person who isn't blood-related.

I have told to some of my close friends about this problem and they state that we seem to be like a couple. I mentioned to them that we are just friends and while we go to much personal topics, there is no romantic inclinations between us... in which I lied on my side. I fell in love in her. I acknowledged this feeling and promised myself that this is only one-sided. I do not expect her to love me back. Not to mention, she keeps on saying "you shouldn't fall to the likes of me" and such. One can say that I'm really friendzoned. "And it was okay", I told myself. But it seems I was wrong :(

Now, it seems her problems are slowly diminishing. And we're no longer talking that much. I really miss those times when she would tell me all her problems. We no longer have the usual 24/7-ish talk. And it's killing until now. You can pretty much say I am wrecked in the head. Confused. Sad. Frustration is always coming at me and I keep on suppressing it. I didn't want to be angry to the person whom I promised my loyalty and trust. Whom I promised that I will always be her ally even in the toughest times. Truly, it feels like being tested...

It feels like I'm a parasite for wanting her attention and being her confidant so much. It feels like I was thrown away. I'm doing my best to keep myself busy but the thought easily rushes back.

Thanks to OP for starting this thread. It feels nice to get a bit of it out of the chest.