<human>: Can you provide a brief rundown of the text in within 3 sentences?

I have known a girl for a few years now, and over the last 8 months our relationship has changed dramatically. She went deep into depression about 8 months ago and I helped her out of it. Since then we have been really close. I would consider her my best friend, and I am sure she feels the same way.

Over the past few months my feelings for her have been getting stronger, but I wasn't quite ready to say anything to her. About 2 months ago she met a guy and started dating him. Obviously this just made those feelings go a lot deeper. Probably largely due to jealousy I am sure.

This guy is a complete tool, and treats her like shit. She keeps telling me how much she hates what he is doing to her. I am beginning to see hints of her depression coming back, and have told her on more than one occasion that she needs to get rid of him. Part of me is telling her this because I don't want her to be hurt by him and partly by my own jealousy I think.

So I am in a position where I don't know what to do.

I am being completely consumed by it, have had a really difficult time focusing on day to day things. I think it may be best to distance myself from her best I can, telling her I am busy. But I feel like I might be abandoning her in a time when she might really need me. 

What should I do? Tell her my feelings and possibly make the situation worse for her than it already is?
<bot>: In love with my best friend who is dating a tool, and who I think may need my help but I dont want to make the situation worse than it is.