Nightmares can cause doubts to set in - but dream expert Delphi Ellis argues they could be a good sign
Walking down the corridor to your bedroom, you open the door and are greeted by the sight of your partner with another person.
And then you wake up. Sound familiar?
If you've ever had a dream that your other half has been unfaithful, you'll know that it can be hard to shake the feeling that they are hiding something.
Like any dream, it can really affect how you see that person - and other doubts may start to creep in.
But dream expert Delphi Ellis has reassuring advice for anyone who could believe that their dreams are trying to tell them something.
She told us: "I'm often approached by people who have dreamt their partner is cheating and are worried their subconscious is trying to communicate this to them.
"Whilst it's fair to say we receive messages from our subconscious on many levels, this dream usually suggests a fear a partner will cheat, rather than evidence they're actually doing that."
"This is particularly the case where someone has been unfaithful in the past in real life, reflecting an insecurity it could happen again.
"The dream is most common, ironically, when the relationship is going well."
We asked readers to tell us about their dreams and were inundated with tales of cheating and infidelity.
One woman told us: "I keep dreaming my husband is having an affair. My dreams about this are so real.
"I can see him and a woman together - their conversations and sexual acts. The woman is never the same, she's always different.
"In my dream I catch him and start hitting the woman and I leave my husband - even to the point I'm filing for a divorce."
Perhaps we can never truly allow ourselves to be happy and, rather than picking up on signals, it's just our greatest fears coming to life in our minds at night.
So if you've had a dream you've caught your partner in the act, it's probably nothing to worry about - and is actually more of a sign your relationship is going well.
Delphi added: "If in doubt, put the elephant in the room and talk with your partner about it. If nothing is going on, they'll gladly reassure you that you have nothing to worry about."