If you do stress honesty in your relationship, and she does not lie to you in general, then there is a way forward. Assuming it was a moment of weakness, she regrets while also not doing anything physical, I would consider it salvageable.
However, it would only on condition she maintains as little contact with that guy as physically possible, even if it means being rude. Additionally, she should start shutting down any attempts to flirt with her properly and in direct manner from now on. If other participants can't handle it means she definitely should not stay in contact with them anyway.
If she agrees to that and follow through with it, I would stay with her in your position.
Do you call her mom?
Tell her to stop treating you like a child, could have been cute at some point but now it's plain insufferable. She has to change or move.
Wait……wait……wait……what is your backup plan
Would she share her profits ( if there were any)?
If there was no agreement to share profit, why share loss.
If you do stress honesty in your relationship, and she does not lie to you in general, then there is a way forward. Assuming it was a moment of weakness, she regrets while also not doing anything physical, I would consider it salvageable.
However, it would only on condition she maintains as little contact with that guy as physically possible, even if it means being rude. Additionally, she should start shutting down any attempts to flirt with her properly and in direct manner from now on. If other participants can't handle it means she definitely should not stay in contact with them anyway.
If she agrees to that and follow through with it, I would stay with her in your position.