Time for Amol to face the music. Like Neil says if you let a criminal go, then they become even more confident. That is what happened with Amol. He managed to get a get out of jail free pass in the Hit and Run case coz at the time Avni wanted to change him.
Then in the durga pooja incident, he didn't succeed in DVM's plan and he even told everyone that DVM asked him to kill Neil. So that is why I think at that time he was actually angry with her, and even the suicide attempt may have been real coz he did that after the fight with Rhea where he defended Avni.I remember he even hung up on her once. So there was a time when he was angry with her. But at some point in between then and now DVM got to him again, and now they are back to being a team.
Once Avni knows all this, there is no way she will be letting him get away with it. He needs to be punished. Also, she will never let him get away with hurting Neil again. She loves him too much for that. This time she is going to have to choose. Neil or Amol? Last time she chose Amol. This time she should and will choose Neil.