AIBU to suggest she can shove her bloody phone up her arse?
Bit of context. I'm working in one of my company's offices abroad (and by abroad I mean far away, long haul destination) for a few months. I'm the only team member to have come over but I've been quite lucky to fall in with a group of fellow immigrants expats doing different things to me. All lovely people, but maybe not the kind of people I'd generally mix with at home; I like to go for a drink or something to eat after work (two things which are a big part of the culture in this country) whereas they're more "curl up with a book" types iyswim (nothing wrong with that!).
Recently met one other woman who is much more my type (we'll call her G) and we've had quite a few good nights out with a wider group including her circle of friends. The other night I mentioned something about phones and one of G's friends said quite randomly, with that famous MN tinkly laugh "Oh G is awful on her phone aren't you G? Never replies to anyone!" to which I was 
, but having not known her that long (and I'm not a big texter myself anyway) I just brushed off.
Comes to yesterday afternoon and G Whatsapps me asking if I'd like to come out for a drink with her in the afternoon. I was still in work but say to her I'd meet her later that night after dinner (context: dinner in this country is about 9pm) if she was up for it. She says yes definitely, I'll text later.
Comes to 8.30, I Whatsapp her asking if we're still on. I can see she's online (sorry I'm aware this sounds stalkery) but I don't get a reply til 9.30. "Sorry just eating now! See you in a bit". That's fine, I say, when/where do you want to meet? No reply. She flits on- and offline for about an hour and a half at this point. I text again maybe 10.45 (again, for context, this isn't that late in this culture, especially as I'm not working the next day) with just a question mark. No reply. Don't hear anything so eventually give up and go to bed about 11.30 more than a little pissed off I've sat round for 3 hours.
This morning I wake up to a Whatsapp along the lines of "Oh shit 
". That's it. No apology.
AIBU to be pissed off? Without wanting to enter stalker territory, she was clearly online all that time I was waiting around. If she didn't want to go, she could've very easily just messaged me earlier on rather than stringing me out for 3 hours!
I had a similar friend who was just awful at texting over simple things and we eventually drifted apart. I'm not trying to enter into some deep conversation - I just want to know when and where we're meeting! I think it meant more to me as I'm on my own in a foreign country so it stung just that little bit more. As G is a newish friend I'm severely tempted to just cut my losses now and drop her - as I've read on here before, friendships are not meant to be hard work!
Sorry this is long