No "-san"? Who is this rude imposter and what did she do to Tohru?
Actually, the person who can do anything to Tohru hasn't been born yet, so I guess she was just really distracted by fantasizing about being assaulted.
Since the last speech bubble looks like it's a different colour from Yuu and Touko's (looks slightly darker than Yuu's to me), I choose to believe that's Sayaka third wheeling on the other side of the table.
I just never felt much between Yuna and Hina. It felt like a "Guess we gotta make the childhood friends fall in love" cliche. There was way more chemistry with Ano.
Keine has green hair? Its hard to picture that - I thought it was silver like Mokou's, or maybe light blue? It is always draw light in doujins (b&w) - and I don't recall seeing her in colour much.
That's her Hakutaku form (Green hair and a pair of horns), since she's a Human-Hakutaku. Her human form (Blue hair and usualy a building-like hat) is more used in artworks and doujins than the Hautaku one.