First off u have no right to say that she is my best friend no matter what ! She has been through a lot ! I wouldn't even call her anything close to the word slut. Whoever this is has me pissed off now ... Just leave her alone and let her be happy !
When all u wanna do is make the person happy. U can be mad at them but after a couple mins u realize whatever it was doesnt matter because u would do anything for them and just wanna give them everything.