What it mean , I'm pissed off !! ?

My bestie had a boy friend actually they had breakup and she said he was speaking again and she said she is stressed? After all from next day she stopped giving time to me.. whenever I call she say will reach you soon !! And when ever i call in Late night out get busy but never i asked anything !! I came to know she is speaking with him everyday but she didn't even said she is in touch with that guy !! I feel she stopped sharing things she says you're my bestie !! How it mean after all !! When ever i been in call she will jump to other call immediately and she will hangup and text me i will reach you soon !! I'm pissed off with this !! Help me what's happening there
What it mean , I'm pissed off !! ?
Post Opinion