Doubts of songs sang by wife

Salaam
If a Muslim wife likes to watch Indian movies/films/dramas/programmes and other films/dramas/programmes and likes to listen to Indian songs and other songs. Most of the time she sings along the Indian songs and other songs or sings the Indian songs and other songs etc. She has also said verbally e.g. ‘this/that is a nice/good song, i Like this/that song, this/that is my favourite song, I like this/that film, it is my favourite film, this/that film is good/nice, make sure you watch this film it’s good’ etc.

Some Indian songs and some other songs do/might include words or statements of kufr/disbelief, however the wife might be unaware or ignorant of that/this.

The Muslim wife’s husband feels that his wife might have become a kaafir because he feels, thinks, doubts or/and worries that his wife might have sang along Indian songs and/or other songs or/and might have sang indian songs and other songs that might have had/included/contained words or statements of disbelief/kufr. But he is not 100% certain/sure.

Some Indian songs and other songs have/include/contain normal words and statements as well as words or/and statements of disbelief/kufr.

The wife might/could have sang the words or/and statements of an indian song or other songs that are normal, and maybe not the words or/and statements of disbelief/kufr or she might have sang Indian songs and other songs that have/include/contain normal words and statements as well as words or/and statements of disbelief/kufr but the husband is not 100% certain/sure of this.

Due to the Muslim husband not 100% certain/sure, Does/should the Muslim husband ignore what he feels/thinks, doubts or worries that his wife might have sang certain Indian songs and other certain songs that might have/had/included/contained words or statements of disbelief/kufr or any of the above explained and regard his wife to be a Muslim and regard her as his wife and continue with his life and marriage?