Here's my ultimate final rrat to settle things. I don't think Zen hates Mouse. I think Zen's afraid of her.
>Zen has abandonment issues about people leaving her behind, to the point where she views a friend of hers hanging out with someone else over her as something concerning
>Most friends Zen makes tend to go on to become friends with Mouse as well. Heavenly, Mei, Ari. This leads to Zen feeling resentment towards Mouse for stealing her friends
>Zen voices this resentment. Gets rightfully told that's an insane way of viewing things which only builds further resentment
>At some point it boils over
>Zen becomes wary of Mouse and avoids her because of not wanting to lose more friends to her
>Henya and Mouse collabing more frequently leads to Zen not wanting to stay close to Henya because she's just afraid she's going to get burned again
>Ari skipping out on a kidnapping only to later join a collab with Mouse extends this to Ari
>Ari is not okay with this and things get heated and leads to the two splitting
>Zen is now terrified of being left alone and drinks a shitload
>Discord announcement -> stream -> days off
There you have it.