I (17f) am my mom's oldest kid and there's been a lot of upheaval since she and my dad broke up when I was 1. She started dating her husband when I was 3 and she got pregnant fast, then they broke up, one of my half sister's was born while they were broken up, they had a brief period of getting back together and conceived one of my half brother's before breaking up again. I was 8 by the time they got back together for real and I was 11 when they got married.

After they got married things settled and my mom started doing this 1:1 things with each of my half siblings but she had excuses for not doing them with me. So for "big" birthdays which is like 5, 10, 13, 16 and 18 she has talked about these 1:1 weekend trips to celebrate. She'll do 1:1 spa trips with my half sisters, she'll take the boys to an indoor sports place for the day. Sometimes she'll take them for an overnight stay in a hotel that has a huge pool and water slide. Those aren't for any special reason. My mom mostly takes me to run errands for 1:1 with me. It's never fun and my mom gets frustrated when I don't know everything she wants. But my mom gets different stuff every week.

When I was 15 I told my mom I felt like she favored my half siblings and I asked if she cared more about having a good relationship with them because she loved their dad and hated mine. She told me it wasn't true and asked where I got the idea from. I told her she made a big deal out of birthdays and making them a priority and 1:1 time but she doesn't do the same for me. I told her the birthday thing started before I turned 13 but we didn't go away for a weekend. I told her she never takes me to the hotel overnight so we can swim and use the water slide together.

My mom told me we'd do the trip for my 16th birthday and she promised she would stop making me feel less important. But then she was really sick on my actual 16th birthday and we didn't get to go and then her husband's mom died and they had to spend a lot of money on the funeral so she told me we'd have to delay it but she promised me she would make sure my delayed 16th birthday trip was the next trip to happen and she would not do one with my half siblings until then. And she had stuck to it but my half sister is turning 13 soon and mom started talking to her about where they should go. I brought it up to mom and she looked startled. She said making up my 16th birthday was taking longer than planned but it would happen and maybe we could do an extra special one for my 18th instead. I asked her if that would be 1:1 and she said if she goes bigger it would need to include everyone. I told her I didn't want that. I said I want the two trips the others would go in my shoes and I told her if she takes my half sister before making it up to me then I will never forgive her. I told her I will never believe that she doesn't prefer them.

She said I was being unreasonable and compromises need to happen. I asked why she asked me to compromise and not them. I asked why she even kept me if I'm such a burden. She got mad and told me she never said or implied anything like that. She said I was looking to see the worst in her. And then she told me she felt like I should hold it against her and my half siblings less and it would be reasonable to think I wouldn't want to punish them for her not being able to make it up to me yet. I told her it I didn't care if they were disappointed at having to wait. That I was still waiting for one damn thing and hoping she wouldn't break another promise. I told her I was dumb to ever believe her because she's a liar and she clearly prefers them. She started yelling but I walked away from her and we haven't talked since.

AITA?