The woman tried to call police but Neumann grabbed her phone and threw it to the ground, smashing it.
He then picked up a microwave oven and threw it at the wall, breaking the oven and leaving a hole in the wall.
Neumann then threatened to burn the house down and went outside, returning with a petrol can.
The woman returned to her bedroom to be with her child. Coming out, she saw liquid on the kitchen floor and saw Neumann emerging with the petrol can, asking his brother if he had a lighter.
The woman demanded that Neumann leave but he said he would not until his mother came and picked him up.
He finished his cigarette and then came back to where the woman was in the bedroom with the child, continuing to argue with her despite requests to leave.
Neumann's mother then arrived and they left the address. Judge Walsh remanded Neumann for sentencing on March 23, granted bail to a Greytown address with a curfew of 8pm to 7am.