No entiendo porqué estás siendo tan terca, pero allá tú. Tendrás tus razones.I don't understand why you are being so stubborn, but that’s your business; you must have your reasons.
Si no te vas a usar mascarilla, allá tú, pero entonces no me vengas a visitar.If you're not going to wear a mask, that's your thing, but don't come visit me then.
Si no quieres seguir mi consejo, allá tú, pero después no me vengas llorando.If you don't want to follow my advice, that’s your problem, but don't come crying to me later.