Magic of Making Up and Money
Finances can be a great source of tension for couples and there is a good chance your breakup was influenced by money. It is not that you did not make enough money to satisfy your ex; it is more likely there were disagreements over priorities regarding spending. Sometimes the job itself is the issue, and not the salary you receive. In any case, unless your ex is looking for a CEO and you are a customer service representative your particular salary is probably not a major issue for them.
The Magic of Making Up recognizes that everything else being equal, more money is better than less money. However, if your ex is considering being with you again and you are in the same financial situation as before, then it is not money that is at the top of their list. You do not want someone who is with you because of your money anyway. Keep in mind that a relationship is a partnership, and both sides should have equal say regardless of who the breadwinner is.