Married At First Sight’s Elizabeth Sobinoff and Seb Guilhaus left fans speechless on Monday when they unexpectedly announced their break-up.

And although the news has provoked much sadness from followers who thought they’d go the distance, it’s also caused a shit load of confusion.

Here’s why people are baffled.

1) They were happy last week

On January 3, exactly eight days before announcing their split, the pair seemed as loved-up as ever and were flirting on Instagram – which is standard behaviour for them.

‘Wowee,’ Seb commented on a picture of Liz, with her then responding: ‘Woweeee back at you’.

This suggests that whatever happened came out of nowhere, and led to an abrupt end?