I think that if God made you two break up it's for the best and find someone else as your partner and you have to keep living. And God did it for the best so you don't have to think God doesn't like you because aren't we all made in God's image.
(No disrespect) but i don't believe that there is a superior being who decides who you date. Its all chance, and a complete act of randomness. The actions you make to day can determine your entire future. Maybe you two don't connect. And have different attitudes
You create your own destiny, God has nothing to do with your break-up. Everyone wants to pin the label of God on everything that happens, and the truth is that you were put in power to make your own choices, even before the fall of man.
Just because you broke up with someone doesnt mean God made it happen. Sometimes things just happen. Maybe it was meant to be and there is someone better, or maybe it was just the natural course of things. God CAN intervene if and when He chooses but that doesnt mean Hes a puppet master directly and personally making it all happen. Humanity was given free will and a heck of a lot happens just because of that. Then there is 'satan' whom everyone, including supposed Christ followers, seems to choose to forget about and he/it can make things happen as well either directly or by influencing/tempting humans.
Everything God does to you is either for ypur own good or to test you. For example, if you get into a car crash, God maybe wanted to test you and see what you would do, or it might've been because you were going to a bad place and God didnt want you to go there