<human>: She's single and has been friends with my boyfriend since high school.  My boyfriend and I have only been dating for a little over a year.  My boyfriend has many female friends, but she's the only one who bothers me.  She claims she's a Christian virgin who's saving herself, but she's gotten drunk and made out with a couple of my boyfriend's friends.  I feel like I can't trust her around my boyfriend.  They'll hang out all the time without me.  Sometimes they'll invite me after they've already made plans, sometimes they don't.  

She has a negative energy and I just don't like being around her.  How do I tell my boyfriend I don't want him spending so much time with her without coming off as crazy.

Give me the gist of the text in a nutshell
<bot>: My boyfriend's good friend is female and they spend a lot of time together without including me.  I don't like sitting at home bored when she's out having fun with my boyfriend.