She is also a full of mixed signals broke daughter of a whore and an alcoholic, with neurosis regarding things thrown at her and a criminal record.
Will he also beat the shit out of the court system, pay the fines for her, pay for her apartment to move out, beat up her parents and solve other issues? Cause she is a black hole of misery that MC can't solve, only get sucked into.
No need:
Mixed signals - What mixed signals? If you pursue her she's up front about liking the MC but isn't ready to sleep with him. Perfectly normal, they just met. Dressing provocatively and/or being flirty != fuck everyone.
Mila's parents - Immaterial. Soon as she moves out they're a non-issue. There's already a plan to do that by moving into a shared flat. MC isn't expected to pay her bills, they're looking for part-time jobs to pay for it. MC doesn't necessarily have any money either at this point.
Neurosis - Have you not been paying attention, everyone in this game is screwed up? Mila isn't nearly as messed up as Bella for starters.
Criminal record - Mila doesn't have a criminal record. She may or may not have been charged depending on how you play, for something the MC did. Even on the path where she is charged, MC is already working on getting her out of it. I see little chance she'll be convicted, unless there's a future option for the player to throw her under the bus. Even if that happened that'd be player choice, nothing to do with Mila.
Your whole take on her character & situation seems off the mark to me, but you do you.
PS: thanks for putting those images in a spoiler.