Problems with my Best Friend

Hi, all!

My best freind was supposed to sleep over tonight, but I don’t know if I should still let her. Last night me, my boyfreind, her boyfreind and her were over at her boyfreind’s house. I asked her before we got there if she wouldn’t ditch me to hang out with him as much as before (which was about 3/4 the time we were there). I do understand she needs alone time with him, but I am her best freind and I rarley get time to hang out with so I wanted at least an hour to hang out with her, but, her boy freind manipulated her to ditch me, specifically the whole time because she can not think for her self. When they finially arrived from 3 hours of avoiding me I pulled her aside and went to talk to her in a seprete room and asked her why she had to ditch me the whole time and she responded that she wanted to make everyone happy which was not working. I was so upset because all I wanted was for her to hang out with me and it hurt me that she didn’t care enough about me to say no when he told her not to hang out with me. How can I make her understand how much she hurt me and how much I want her to spend sometime with me and not ALL HER FREE TIME with her boyfreind. And, should I still ask her to sleep overtonight, even thought I’m still incredibly angry.