Pass it on
The decision to stay; to follow through; always requires the death of some alternative version of yourself. Not the worst version. Often a version you genuinely liked. That loss is real and should not be minimized.
Every commitment is also a funeral. When you marry one person, you bury the version of yourself that could have married someone else; or no one at all. When you choose a career, you bury the versions of yourself that would have been a musician, a teacher, a carpenter. When you have children, you bury the version of yourself that had uninterrupted sleep and spontaneous weekends. These are not imaginary losses. They are real alternatives that died so the actual could live.
The culture does not prepare us for this. It tells us we can have everything; the career and the family and the passion project and the fitness routine and the thriving social life. You cannot. Every yes is a thousand nos. And the nos are not failures. They are the cost of the yes. If you refuse to pay the cost; if you keep all options open, if you hedge every commitment with escape routes; you are not keeping your options alive. You are keeping your commitments dead.
Grieve the alternatives. They deserved to be grieved. But do not let the grief prevent you from the commitment. The version of yourself that stays; that follows through, that chooses this person, this work, this place, this life, and does not look back; that version is not the one who kept all options open. That version is the one who buried the options and planted something in their place.