I feel like I am losing my best friend and it is the worst feeling in the entire world.  I don't really want to go into the specifics but basically when ever i hang out with her and her fiance she gets in a bad mood and is kind of rude to both of us.  She isn't the person she used to be.  And when ever she and I have plans to hang out her fiance always gets invited too.  I like her fiance.  He is a really great guy but sometimes I just want to hang out with my friend.  I feel like she isn't there for me as much as she used to be.  And she is becoming kind of stand off-ish.  I don't know what to do.  She is like a sister to me.  Her family is essentially my family but its getting hard to be around her.  I just pray this is something that will pass but I'm worried it is something bigger than that.  She doesn't like to talk about her real feelings so I have no idea what she is really thinking about or what is really bothering her.  I don't know what to do.  I just want my friend back.