Iīd like you to show me any mistakes there might be in this sentence, especially in relation to the use of the possessive pronoun:
"Joe and Lara remained together for 3 years although everybody used to tell them they were losing their youth by having such a steady relationship. However they said that they didnīt care, as the life and the problem were theirs."
It is perhaps an unusual use of the word life, but I see nothing wrong grammatically with that sentence.
It would sound more natural if you said 'as it was their life and their problem'. ;-)
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