Try to make out that being a lone parent is no different to having a partner? It's always "well if you had a partner they wouldn't help anyway" "if you had a partner you would still be doing it all anyway" this isn't my experience or the experience of anyone I know. I get why some single parents may feel like they "did it all anyway" in a relationship but I don't think that's really the case and surely people wouldn't have children with someone that did absolutely nothing? They must have done something? Are seriously saying their partner wouldn't help with anything at all? That's really not my experience.