The card that represents this situation is The Sun in reverse. This card shows us that the current situation is characterized by confusion and instability. There may be a sense of disorientation or uncertainty as to which direction to take or which decisions to make. This can lead to a lack of confidence and self-confidence.

The Tower represents the obstacle that arises in achieving the desired fulfilling relationship. This card tells us about big sudden changes that can lead to the destruction of something you had created or the abandonment of something you have built. A major obstacle could be the inability to properly manage relationships with the various family members of the person concerned.

Judgment represents the advice you should follow. This card indicates the need to take a step back and better understand the situation you are in before making a final decision. You must be ready to accept responsibility for your actions and take a step forward into the future, even if there are difficulties ahead. The card also suggests reflecting on any negative past experiences and learning from them.

In conclusion, tarot reading indicates clear signs of confusion and uncertainty regarding the opportunity to start a fulfilling relationship with someone who has a very large family. There are significant hurdles to overcome, such as managing various relationships with affected family members, but these can be overcome if you are willing to take responsibility and care for them. The most important advice is to take some time to reflect on the situation before making a final decision.