My sister's wedding is in April, we arent super close so she didn't make me a bridesmaid. It's a small event, so she wanted to know beforehand what we were wearing so she could accommodate with certain people's needs.I told her I was wearing white, she goes off. She tells me I hate her, I'm... show more

My sister's wedding is in April, we arent super close so she didn't make me a bridesmaid. It's a small event, so she wanted to know beforehand what we were wearing so she could accommodate with certain people's needs.I told her I was wearing white, she goes off. She tells me I hate her, I'm disrespectful. And that I shouldn't being wearing white if she's the bride. I laughed at her and told her to stop overreacting. SHE THEN BEGINS TO CRY. I couldn't stop laughing. She started to say I always try to steal the lime light from her. I rolled my eyes. She then says she will remove me from her wedding if I don't stop. I said she didn't need to kick me out because I left. As I left I cancelled her order of flowers & catering. I was so angry. She lost her deposit, though it was under my name. She texted me the next day saying that I was out. I can;t understand why she's so catty and inconsiderate.I love my sister but what should I do? How do I confront her about her toxic behavior?