Digital assistants like Alexa will soon be able to tell when your relationship is on the rocks, experts predict.

The devices will listen in on conversations and arguments to work out how couples are getting along.

And by 2021 they will be using artificial intelligence to predict the chances of them staying together to within 75 percent accuracy, it’s claimed.

If arguments break out, the voice-controlled speakers will also suggest ways of settling them.

Dating tech expert Prateek Jain said: “They will act as a therapeutic resource within a relationship.”

It’s just one way AI will play a part in our love lives in the future, according to a report by Imperial College Business School.

The devices could help work out if couples are well suited in the first place.

By 2025, genetic coding will be combined with information from activity trackers to see if there is any sexual chemistry between couples.

AI will also signal the end of swiping right or left by filtering online dating profiles in greater depth, the report says.

Author Aparna Sasidharan said: “AI is changing our perceptions of love and relationships.”

“In another decade we could be seeing continuous relationship coaching or marriage counseling as well as improving relationship health and helping people project a more attractive persona.”