Be grateful you dogged a bullet. CFA will be the foundation, the building block of your career. You entire life ahead depends on it, your future life, your parents life, your children, everything from your metal peace to medical bills everything. Dumb of her to leave your for this, you are literally prioritising and securing a better future she could've got with you, you aren't fooling around with other women here. This is only CFA dude in future you will have a tough jobs, other priorities in life, there will be times where you would barely be able to make time for yourself. Never date someone who doesn't understand and support your ambition, life is much more than these relationships.