My boyfriend is as old as the man I used to like, and so is the constellation. The person chasing me has the same name as the person I chased before.

Is this really doomed? It's just a coincidence. There is no such coincidence, but it's not something you are obsessed with. You just need to respect each other, be considerate and get along well with your current boyfriend, because everyone's life is moving forward and the past is the past. You can't live by thinking about memories, and you can't live by illusory fantasies. But to focus on the present and be practical and comfortable.