<human>: We've been friends for about a year, and was always very close from the start. I've always felt something for her, and I told at the start of our friendship(maybe 2-3 months in), we just find of forgot it ever happened and carried on being close friends. 

I feel that I can't carry on like this and feel it's not healthy for me, I get depressed and angry when I'm alone thinking about the situation I'm in. 

She has a BF of around 4 years but she knows it's going to end soon, however she also tends to talk to lots of of guys and flirt with them. 

I've being thinking of telling her how I feel and see how it goes, but every time I come close I think I'd rather be friends instead of nothing, also considered just for us to stop talking but again the same problem. I just feel if I do nothing I'll never start feeling happy in life with things the way they are.

Can you give me a shortened version of the text?
<bot>: I think I'm in love with my best friend, making me depressed I can't change it and don't knew what to do.