So I’m (23F) going on a trip soon (April 18) with my sister (24F) her boyfriend(25M) and I’m feeling upset about how everything was handled. I don’t know if I’m being ungrateful or dramatic, but I genuinely feel like I wasn’t considered at all.

For context : Half of this trip is a graduation gift. My parents, my sister, and her bf are covering my flight to Ecuador (about $1000), and we’ll be staying at my sister’s boyfriend’s parents’ house for a few days. I don’t need to pay for accommodations in Ecuador, just my spending money and food if we eat out. I’m super grateful for that part, I’m really not trying to sound entitled.

But the second part of the trip is to Costa Rica from April 23–27, and I paid for this part completely on my own, that being my flight (around 400$) and $700 for my share of the resort. The original plan was that it would be me, my sister, her boyfriend, and his brother (who’s gonna fly with us from Ecuador) in a room with two queen beds. I was supposed to share a bed with my sister, and her boyfriend would share a bed with his brother. That was the plan from the beginning and I was okay with it.

Now for the problem: Today April 16, I call my sister to talk about the trip and she casually drops that her boyfriend’s cousin is also coming with us to Costa Rica now. So I asked her if that makes the trip any cheaper for the rest of us since we’re 5 now, and she says no, it’s the same price. I asked so how are we going to be sleeping now, and that’s when she tells me she cancelled the room we originally booked and changed everything.

So now there are two rooms:

One with two queen beds for her bf’s brother and cousin.

One with a king bed for her and her boyfriend, plus a ROLL IN, ROLL OUT bed… for me.

I was honestly so shocked. Like… how is that fair? I paid just as much as everyone else and now I’m sleeping on that shitty bed they bring in at the end of the night while everyone else has their own beds or is with their partner? I kinda flipped out and asked her how this was fair at all, why did she do this, why she didn’t just book another two-queen room and she said it was $80 more per night and that if I wanted to switch to that, I could pay the difference…

I suggested we just split the difference to make it fair and she refused, saying it’s not her problem because she and her boyfriend are fine with the king bed, I’m the one who doesn’t like the set up. So basically, I either suck it up and sleep uncomfortably for 3 nights, or pay an extra 240$ so I can be just as comfortable as everyone else.

I told her I didn’t think it was fair to change something that directly affects me without even telling me. She said “I only changed the reservation yesterday and I’m telling you now. What, do I need your permission to add someone to the trip?” And this is where I might be ungrateful but I said that I don’t care that this cousin is coming, so yes she should’ve talked to me about it first. I said him joining didn’t make it any cheaper for me, if anything it made it more expensive and worse for me. I don’t even know him and now I’m the only one stuck on a rollaway bed when this random guy gets to be comfortable.

She got upset and said, “If it’s bothering you that much, I’ll just cancel your ticket.” I told her I didn’t want that! I want to go, I’ve been soo excited for this. I just feel like she didn’t even think about how it would affect me, and that hurt. She made changes that affected my sleep and comfort — on a trip I’m paying for — and didn’t think to include me in the conversation. She told me I was being picky and very ungrateful considering all they did for me. I kinda sighed and said whatever man and we hung up the call.

Now I’m left wondering if I overreacted. I am getting a free flight and free stay in Ecuador, and I’m super thankful for that. But this Costa Rica part? I paid for it and I feel like I’m allowed to complain that this set up isn’t fair.

So with that all being said, AITA for how I reacted?