He does to a limited extent, he pays slightly more maintenance than the CSA says he needs to, as our youngest is on a limited, expensive diet due to being severely allergic (to the point of anaphylaxis) to Dairy, Soy, and nuts, and I just can't afford to pay for his limited diet out of my benefits.
Two of my DC's are my Ex-P's, my 8yo DS2 and my 18mo DS3. He has DS2 overnight 26 nights a year, and DS3 just 6 nights a year.
My Ex-H (DS1's father) pays no maintenance, but has him overnight almost half the year.
My DD's father pays what maintenance he can afford, and sees DD only in school holidays, as he lives 600 miles away. DD flies up to spend two weeks with him on the 2nd August.
So yes, I have 4 DC's with 3 different fathers, which DOES sound bad, but I was engaged and had a wedding date set with DD's father, but we split up BEFORE I found out I was pregnant. DS1's father I was married to, until he decided to sleep with his OW in my bed with our DS in the room. DS2 & DS3's father I was with for 9 years, but he walked out when DS3 was just 4mo.
None of it was my choice, to have relationship breakdowns, and except for DS3 (much loved contraception failure), I COULD afford all the DC's I had. I was diagnosed with my disability when I was on Mat leave with DC3 from my career in which I was the main earner for the family - so I believed that even as a Lone Parent, I could support my family. I didn't have a crystal ball that told me that I would be diagnosed with epilepsy that would mean I lost my career. Or that I would later get another diagnosis of Fibromyalgia to go along with the epilepsy.
I sound ok on paper, don't I. Yet I am counted in the figures of these 'problem families'.