This thread is for asking any questions that might seem obvious, tangential, silly or what-have-you. Don't be shy, everyone has holes in their knowledge, though the fewer and the smaller we can make them, the better.
Please be respectful of other people's admitting ignorance and don't mock them for it, as they're doing a noble thing.
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Suppose you became deeply religious as a young adult and married someone of the same religion with a traditional promise to be loyal to them until death. Divorce was unthinkable to your spouse and you had repeatedly reassured them that you fully meant to keep your promise to never leave them, no matter what changes the future brought. You are now no longer religious and remaining married to this person makes you miserable in ways you are sure you can't fix without betraying who you currently are. Is it moral to leave your partner? Why and why not? (Don't worry, this is a hypothetical situation.)
ETHICAL INJUNCTION:
Any moral reasoning that results in "...and I will be miserable for the rest of my life" that is not extremely difficult to prevent and has few other tradeoffs is probably not correct, no matter how well-argued.