I split with my ex in Feb. I have not had a penny from him since then, and I have continued to pay the mortgage on the family home that he is now living in, as well as the rent on the house I have. He had not worked for a long time.
He has started making quite a lot of money, partly by renting out rooms in the house I pay the mortgage on and partly by buying and selling. So much so that he has decided to spend £1,500 on getting the kids a new computer - that they don't need. We have a family computer and a laptop already, but he has got the kids all hyped up about the computer.
If IANBU, how much maintenance should I ask from him? Is the total of half the rental income plus the cost of the mortgage too little? Should I ask for more than that? Help!