[Liam-]

He has no right to be angry at someone because they didn't toast his brother, it would have been a nice gesture if she did, but it doesn't make her disrespectful or rude because she didn't, Austin is not entitled to have everyone do whatever he wants them to do, if she didn't go out there to toast, that's her decision and no-one else's, it sounds like he's been a dick to her for absolutely no reason apart from his massive ego being hurt by someone disobeying him.