I am wondering what "Despite the impression she works hard to convey of bohemian vagueness" means in the following sentences:
‘How sweet,’ Mum’s saying to Hannah. ‘Five’s a lovely age.’ She’s certainly doing a very good job of acting interested. ‘And how are your two, Ronan?’ she calls down the table. I wonder if it is an intentional slight, not to have included Séverine in her question. Actually – scrap that, I don’t need to wonder. Despite the impression she works hard to convey of bohemian vagueness, very little my mother does is unintentional.
- Lucy Foley, The Guest List, Chapter 14
This is a thriller novel published in 2020 in the United Kingdom. One hundred and fifty guests would be gathering at some remote and deserted fictional islet called Inis an Amplóra off the coast of the island of Ireland to celebrate the wedding between Jules (a self-made woman running an online magazine called The Download) and Will (a celebrity appearing in a TV show program called Survive the Night). The day before the actual wedding day, during the rehearsal dinner, Jules sees her mom talking to Hannah. But then, suddenly, her mom begins to talk to her dad, who is divorced from her mom and is re-married to his latest wife Séverine.
In this part, I am finding it difficult to understand what the boldfaced phrase means, because the structure feels to be somewhat tangled to me.
Is it "the impression of"...? Or "convey of"...? And what would "bohemian vagueness" mean...? I have no idea, so I would like to ask for your help.