The Welsh Government is under fire for refusing to support calls to put a specially trained teacher in every school in Wales to deal with violence against women.
Opponents want the idea included in a new law currently being considered by the Assembly.
They're threatening to withdraw support from the whole legislation if the government doesn't give way.
The Welsh Government says the aim of the bill is to end all forms of domestic abuse and sexual violence.
The Assembly will vote on amendments on Tuesday and it will be rubber stamped next week.