Married At First Sight Australia relationship expert John Aiken says how you talk – and how it lands – is important. Photo / Jason OxenhamMarried At First Sight Australia relationship expert John Aiken says how you talk – and how it lands – is important. Photo / Jason Oxenham

2. Red flags: Having too many non-negotiables can rule out any chance of finding love

3. Control: Trying to dominate your partner will lead to gridlock and unhappiness