My partner moved into my mortgaged house earlier this year before our baby arrived. He pays half of the bills but does not pay any rent for living here and also contributes very little towards our new child. He earns approximately a third more than what I do. He also has a child with his ex who visits every week and occasionally stays overnight. 3 years after splitting with his ex he still pays half the mortgage on the house they had together and also child maintenance for their daughter. He is unable to get out of his mortgage until the house is sold so is stuck paying this. My mortgage is currently 1/3 of my income which leaves me very little money each month. I have tried to discuss this with him however he keeps saying he will pay more but never does. His ex currently receives more of his income than I do for him living at my property. Am I being unreasonable to ask him to contribute towards the mortgage and contribute more towards our daughter?