Is 70/30 greedy in a divorce?

So this is kind of a long story but me and my husband have been going through a divorce for 2 years now and it's taken so long due to the 2 properties we have joint ownership of. Before our divorce my husband suddenly got very ill and it turned out he had contracted HIV and is now full blown AIDS.Now as you can imagine I was really worried so I got checked and I was negative. This sprouted a lot of thoughts like has he cheated on me as how else would he have got it and he has repeatedly denied cheating on me and I just didn't know what to believe.He then went to a HIV support group and he met a man half his age that also had contracted the disease and he asked me if he could go out with him as he has always had a thing for ladyboys and this guy happened to be a ladyboy. I was gobsmacked. I had stayed with him all this time despite him having HIV and then he has the audacity to ask if he can go out with a man. I said so whatever you want and that's when the divorce started. He doesn't pay child support for my child and the other one is 18 yet I still look after both of them. I also pay the mortgage for both the houses by myself.He hates me for wanting more but I need more in order to support my children. Is 70/39 right or wrong?