There was a woman who took off her wedding ring before she went to bed. She did this for 10 years until one day, she just fell asleep. Based on the past, it should have happened, but it didn't. Why? No matter how often something happened in the past, it is our vibration that determines whether it will happen in the future.
There was a man who took daily walks to the coffee shop. Next to the coffee shop was an antique store. He never went into that store. Why? Because he was not a match to it regardless of how easy it was to walk in there. No matter how easy something is, what we vibrate is ultimately what creates our experience.
We can look at the past or circumstance and say that something is too "logical" or easy to create, so it should happen. But unless we allow that thing to happen, it won't. So we need not fear dealing with unwanted possibilities. Possibilities are just choices. We only need to deal with them if we allow or have allowed them into our experience. If they have come into our experience, we can displace them by focusing on what we do want.
There is nothing that should happen unless we allow it and allow it fully.
When you look at something through the lens of circumstance, you are not looking at the whole of reality. Because in reality, the only thing that matters is your vibration. Nothing else determines your experience, only your vibration.
Even if you allowed circumstances to dictate what happened in your life, there would still be no guarantee of "unwanted" happening because ultimately it is about vibration. There is no guarantee that the person would line up with creating that circumstance.