>>50984043She never does and never will.
I genuinely think the most straightforward explanation is the easiest one: Someone in the collab pissed her off and she bailed in retaliation then bailed on her own stream in order to ensure people wouldn't call out whatever excuse she made.
I love Pips but she's got absolutely zero ability or willingness to be the bigger person when given the option not to be and neither does she EVER talk things out EVER unless someone she respects or fears forces her hand.