When your man want break up with you

Shontai • I am work at mom of four children trying to conceive my fifth
Well me and my boo been together almost a year and we argue every day about me so called cheating ..I knows I wasn't a good girl in the past but I'm trying to do the right thing and be happy with him and my four and possible one more but what to do when this man want trust me...some plz give me some advice