But their love was not straightforward as Heather is Anglican and her husband is Shia Muslim. However, Mrs Al-Yousuf thinks this is why so many inter-faith couples are drawn together.
Inter-faith marriage is on the rise in the UK. But as couples from different faiths fall in love, what are the challenges they face?
“There are quite a lot of Catholic-Muslim couples, and Catholics from quite a strong Catholic background meeting a Muslim from a strong Muslim background.
“It is almost like there is something they recognise about each other, there is an unconscious connection there – same kind of families, same kind of faith informing how they live life,” Mrs Al-Yousuf says.
She believes each faith puts family at its core. However, inter-faith relationships also challenge both faiths. Where do they marry? In what faith do they raise their children?
According to figures from the 2001 census, more than 4% of married Muslims are in an inter-faith marriage in England and Wales.