I'm so dann lost

I'm start feel alone . I'm try my best to be friends with my sons dad. But he don't want to be just my friend. He make it very hard to deal with him sometime . thing he say and do . I just want to run away . I have 4 kids not by him .3 before I met him and one after my oldest son . he play football was needed his Jersey . and I didn't ask. For any help. At all and my sons dad of the two kids I got by him made the statement he not obligated to help me with any of their stuff or anything ..which I know he not. Which I don't mind . But you been with Me 5 year and still say the same thing over.but I was rasin if you get with someone that have kids .the right thing to do is help.. I done ask him over and over let Me be with someone else that going to help Me . and it like im force to stay. Cuz if I do leave he not going help with his two. I need help.no rude commet.plz.