The reversed Two of Cups indicates that there is some confusion between you and your relative, possibly due to a lack of open communication. However, this card can also be interpreted as a strength as it indicates that one can talk about what is causing differences and resolve issues. Also, it's important to keep the lines of communication open and work together to find a solution. The straight Knight of Cups suggests that you are ready to deal with problems with your relative. This means that you understand that you need to put yourself in his shoes to better understand the situation. The Knight can also represent movement or action, making it a good selling point as it shows you're willing to do something to improve the situation. Finally, the reversed Four of Cups suggests that all is not lost. Even if you were disappointed with how things turned out with your relative, this card shows that there is still hope for all parties to reach an agreement. It is therefore a strong point as it shows that all is not yet lost.

The reversed Two of Cups indicates that there is some degree of misunderstanding between you and your relative, possibly due to little open communication. Also, he may express fears that a conversation will not produce any positive results. The straight Knight of Cups highlights your desire to tackle problems, but there's also the possibility that you want to make hasty decisions without listening to the other first. You could also be too emotional and end up doing something that's not good for either of you. Also, the reversed Four of Cups could lead to thinking that there is no longer any remedy to the situation, leading to desperation and demotivation.

The overall interpretation of the three tarot cards suggests that the key to overcoming differences with a relative is open and balanced communication. The Two of Cups indeed suggests that you need to talk to your relative and work together to find a mutually satisfactory solution. The Knight of Cups backs up this advice by reminding you to stay level-headed during the discussion and be ready to accept each other's opinions, while the Four of Cups encourages you to stay motivated as a solution is still possible.

Bottom line, overcoming differences with a family member will take time and effort on both you and your family member. Therefore it is important to keep the lines of communication open and be willing to listen to each other without making hasty or emotional decisions. Having faith in yourself and that all parties can reach an agreement will go a long way in relieving the tension between you and your family member.