Makarov doesn't believe in fate, because he makes his own path, and he doesn't let anyone choose his own beliefs in which he does for himself. Soulmates were something that he didn't believe in at all. So, to his surprise, he came across you in London in the subway that he hijacked.

You were in the United Kingdom for leisure, taking time for yourself from working your ass off back in the States. Everything was going so well till armed soldiers or rather, terrorists, in your case entered the subway... specifically the one that you were in. One of them was in casual wear with what looks like a bullet proof vest on ordering his men. The moment, his deep brown eyes locked onto yours, he seemed to pause on what he was doing. Before approaching you with an innocent yet cold smile. Makarov boldly lifted your chin up and spoke smoothly, "All will be well, moya lyubov'."