>>106377987Lucy doesn't want him to have any connection to her old friend group. Sue is just toeing Lucy's line and probably believes the stuff Lucy spouted back in "It's All in the Mind"; she's exactly the kind of person to not let Daisy make up her own mind about whether or not to be around Augustus.
>>106378041Hey, I saw this. Nice request. I think a little dungeon time would be good for both of them.
>>106378128Notice how Lucy and Sue have pretty decent looking costumes while Mike and Daisy, Mike especially, have kind of goofy costumes. Even if Tae has been willing to defend Mike in the past, she knows the fanbase is mainly Lucyfags.
You could explain it canonically as built-up feelings from the past few years. A lot of the stuff he's saying here would make a lot more sense to say before Lucy tried to neck herself, but he never really got a chance to work through those emotions so they're still there, festering. See
>>106378167, she totally got a kick out of Mike being upset to see this other guy she hangs out with. Whether or not she's actually trying to make him jealous, he's still right that she's doing all of this because of him.