Am I jealous or right on?

[Ab]

I have a friend I use to be best friends with since she's been to college she hangs with a guy that graduated a year before her. He wants to "get" with her and she knows it. He's really immature and lacks any morality but she hangs with him a lot. Side note she's a flirt.

I asked why she doesn't find time for anyone else? She answered she spent free time with her boy friend and no one else. Then she said she to busy to keep up with me and that I was jealous of this "friend". However, she finds no time for me but hangs out late with him (they go to the same college) and there all over each others Facebook: when she told me she has no free time?! He's bringing her home for the weekend which is a 10 hour round trip. I just want to know if she's not being a good friend or if I'm being selfish?