What do you consider a “single mom”?

My husband and I are separated and have been for about 6 months. Before that he was on drugs so he was emotionally and mentally absent. He didn’t help raise our child at all, no diaper changing, no feedings, no baths, no nothing. He did however continue to keep a job and pay the bills and I have stayed at home throughout this. I do go to school full time but other than that I stay at home until we are officially divorced.

He doesn’t consider me a single parent because he still pays the bills but he hasn’t lived with us in over a year.

Do you guys consider me a single mother? Please explain.