OMG!!!

I'm soooooooooooo bored and totally depressed so like my boyfriend and my sis's boyfriend broke up with us on the same day (like 2 days ago) and now another guy just asked her out! And she didn't even like him! She didn't like the way he flirted with her and now she is like in LOVE with him!!!
I am so depressed and kinda mad at her! I guess I probably shouldn't be and I feel bad but she doesn't seem to care about me anymore and she nevers talks to me and she just hangs out with her bf!!!
I AM SOOOOO DEPRESSED :(