family matters

For many of you that dont know me, my name is kirsten but my oldest sister ashley gave me the nickname tif. Ashley and I are usually rather close. We tell each other everything; until recently when Ashley has started to exclude me in what goes on in her life, certain topics such as, whats new in her life..I dont even know her any more..Im quite disturbed by this thought because she is going to college next yr and I dont want to lose touch...I meanIi have plenty of sisters I could chose from if I was only concerned about being alone but over the yrs we have formed sort of a special friendship..but ever since her and her boyfriend broke up we havent been connecting. ..she didnt even tell me her and him broke up. I found out from my friends 3 days after. today was propbably the closest we've come to spending time together other than the ride to and from school..Im going with her to the bou with her and her friends.. the only problem is I dont think she'll want to spend time with me..she only half heartedly invuited me..as if she didnt want me to go..I'd tell her but I dont want to have to explain my story so she could understand what im going through..Ive been told she just needs time with her friends but I need time with her.. before she leaves...