Dealing with daughters father have another child and never spend time with her

Hi my name is gina I am a single mother and work 50 hours a week I do the best I can for my daughter I show her right from wrong does and don't her father and I haven't been together in a long time but I do my best and try to have family dinner when I can I've came to my breaking point at this time. I knew my daughter father was has a kid by another girl who wasn't his girlfriend and even congrats him the day she was born. I asked to let me find the right way to tell my daughter to where it won't hurt her and to where she would understand but just the other day he sent my 4 year old daughter a video telling he with a smile on his face here is your sister and left it at that. My daughter is 4 and had a million question for me that I was prepared for or had the answer for . She told me mommy it's not a good idea for dad to have another baby . And went on and said does he not like me am I a bad daughter he doesn't spend time with . It broke my heart I full rights to my daughter but feel the need she needs her father so she won't looking for a father figure when she grows up. But now I feel as if he is just breaking her hearth 10times more I only have one child since getting pregnant was not very easy for me I don't date because I feel as if I need to solve my own life before I can start a new one but the way he told my dad when he wasn't around mad me dis like him as my co parent. I need a mother that would understand me or has been in my shoes I don't know what to do or how to tell my daughter when I don't feel like it's my problem.... I told him I share a child with him not a life and now he thinks I should meet his new kid when I don't feel like I need to I have a child I need to tend to and I don't want to be apart of that life when he has my child and a new girlfriend and now another child by a lady he doesn't know ...my daughter is just now being ok and understand that we do not live together or live together but we both want her to know what a family is ...I need a mother help with guiding me the right way ....