You dream that there is a third person in your good relationship (whether that third person "belongs" to you or your partner). Dreams about complications often reflect feelings of insecurity about the relationship. It doesn't necessarily mean there's a real third person, but it might indicate a desire to take the relationship a step further while being unsure how to proceed...
»»» Wake up and confidently express your feelings! Perhaps your partner also wants to improve the current relationship but is hesitant... because of you!