To have expected more elderflower pressé?

[GoudaMozzarella]

Two nights ago, having just completed a 4.5 hour + journey to see my DP, I mentioned that I'd like some juice so DP said he'd go to the shop for some. What I actually wanted was Elderflower pressé, but I didn't say this specifically so was happy with the fruit juice that he came home with. Unable to shift my craving for Elderflower pressé, we went to the shop for some tonight. When we got home we each had a glass and then DP asked if I'd like some more. I said yes please, and when he came back, he had one very full glass and one with a tiny drop in the bottom. He said that he'd put alcohol (which I don't drink) into the bottom of his glass and filled it with the Elderflower presse without realising there'd be none left for me.
AIBU to have expected more Elderflower pressé?

Thoughless selfish prick

I don't blame him for needing the alcohol (with the elderflower pressé).

He’s a twit. Teach him better manners and the concept of sharing. I feel your pain. I’d be really sour if my chap did anything like that. You are not being unreasonable.
Tuck it up your sleeve and get your own back some time.

He's done it without thinking. Unless you are skint, you should have bought more. Get some tomorrow and just let it go.

Sounds like it was an accident tbh
Yes, you can be disappointed, but calling him selfish is a bit much.
I'd expect more than 2 and a bit glasses from a bottle

I think it depends on your relationship to be honest. I'd roll my eyes if my DH did the same but I wouldn't really care because I'd know it was just a mistake. I'd probably eat his chocolate or something. But if it's a pattern of selfish behaviour, I'd probably feel differently.