My sister's best friend

Iv'e been talking to my sister's best friend for a couple weeks, and we are both ready to start dating, but all of a sudden my sister has just gotten pissed off at the girl for some reason. She refuses to tell me why other than I heard her muttering about boys or something like that. She has already caused problems with us getting together, I really believe them to be accidents. Her and my best friend pretended a lil while ago that some shit had happened between them, and I think that she may be wondering if we are messing with her the same way.

Besides all that, my sister went over to her house and called her mom a bitch. Now she isn't allowed back over here to visit my sister.

It's like she is going out of her way to alienate her best friend to keep us apart.

I just don't know what to do. Whenever I talk to her, my sister is right there.
She won't leave us any privacy. I get that she is her best friend and all, but whenever she comes by and I am talking to her over myspace or msn she sits down and reads what we are writing.

Just about an hour ago we were talking and I got my sister to leave, right after that she calls her, tells her to read her myspace message, and hung up. The message was about what she is pissed at her about.

I just don't know what to do.

first... how old are both of yal.... and your sister?
how is you and your sisters relationship?
how many friends does your sister have?

and any ohter info you might think is relevant..

when you post back that info i will assess...

I am 16, my sister's friend, 15, my sister is 14.

My sister has many friends

Me and my sis have a rocky relationship, sometimes it's great and we are very close, sometimes it is terrible. and it can change either way in 5 minutes or less.


Her friend just got out of a serious relationship

My sister doesn't think that her friend is my type. Didn't tell me this until recently.