Am I wrong😕

I been with my bf for over 5 months now I'm 21 he is 32(and my first❤️). He have 2 kids and is going threw a divorce (messy one). I love him so much but I can't grasp the whole kid thing, when we first met I had no problem with it till I met them 4&5 years old. I know in the long run I want kids of my own and to be married, I think since he made a family already he doesn't want to ever get married again. I broke up with him yesterday because of it, but when I told him why he told me his kids are non of my concern and have nothing to do with us, for the past day I been trying to make him understand but now he is just mean and disrespectful towards me,telling me how they come first and I'm mad I didn't have a father in my life😒

. I feel if I want to be with him seriously they are my concern and if we live together and he is paying child support that's a lot coming out our income together..

My question to you all is did I make the right decision?? It breaks my heart to let him go but this is not financially a smart move for me down the line I think.