Sorry but I disagree. Why wouldn't he? There's a lid for every pot. Men find women attractive in all shapes and sizes, big or small feet, ratty hair extensions, no hair even. Just because we find her irritating doesn't mean that men don't or won't find her attractive.
As for the whole she shouldn't have messaged Starbucks guy, I also disagree. A polite friendly message is I'd say far more acceptable than creating an awkward situation face to face by asking for their IG, or number, or suggesting meeting for a drink - that is far worse because you're making putting them on the spot in their workplace while they're working - and they may feel obliged to respond in a certain way. A message is far less confrontational and means he's under no obligation to respond. And the other alternative that she could have left it to him...why? It's 2022 not 1822. Women can and should take the initiative rather than sitting back. You don't ask you don't get.
However back to criticism of Poppy where it's warranted, I am somewhat staggered at the waste of money on that dress (well, generally, but let's start with the dress). Especially as you can get similar on SheIn for about £20-30. Its not even that nice a dress!