Family sucks

So I just found out my big sister is engaged. But of course she didn't tell me herself. I never would have known if I hadn't seen a comment somebody left on her Facebook. She basically took care of me for years, I don't understand why she doesn't care anymore. Doesn't return my texts, changes her phone number and doesn't tell me, changes religion and doesn't tell me. The marriage won't last anyway... She's a slut... I can guarantee I won't be invited to the wedding. And if I am it's only because I sent her a message (on Facebook, since there's no other way to contact her because she wont give me her phone number) asking when it happened. I wonder if she's pregnant. I wonder if she was ever going to tell me. We're half sisters, but I never thought of her as half anything. She was always my sister. A sister's supposed to be somebody who's there for you when you need them and she won't even give me her phone number? I don't know why I keep trying to have a relationship with her. It just gets me hurt.

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