AIW for expecting presents off my girlfriend for my birthday?

I’ve just had a big birthday for me and my girlfriend and we’re on holiday during my birthday. We go on holiday each year anyway, this place was just a bit further away than we usually go. 

We both paid 50% of the cost of the trip so it’s not like it’s a birthday present or anything. When it came to my actual birthday my girlfriend mentioned she hadn’t actually gotten me anything since we’re on holiday so that’s for my birthday. I pointed out the trip isn’t a birthday present since I had paid for myself. She just shrugged and said she’d still paid half of the cost so this was my birthday present. 

I again just pointed out we go on holiday each year so it’s a bit shitty she hadn’t bothered to actually get me anything but she just called me ungrateful since we had the holiday. 

AIW for being disappointed my girlfriend got me nothing for my birthday?