The first card we will analyze is the reversed Queen of Cups. The Queen of Cups represents a feminine energy, which in this case is reversed, indicating that Luke's love relationship is not in balance or healthy. It could be a sign that Luca is currently investing more into his love affair than he gets in return.
The second card is the Ten of Wands. This card represents the obstacle or cause of Luca's current situation. The Ten of Wands symbolizes the obstacle created by oneself, and in this case it could mean that Luca is withholding something from his love affair, perhaps out of fear of fully opening up to his partner.
The third card is the Six of Pentacles. This card represents the solution to the obstacle just identified. The Six of Pentacles represents balance, calm and stability, suggesting that difficulties can be overcome if Luca can open his heart and take a step forward in his love relationship.
From the analysis of the three tarot cards, we can say with certainty that Luke's love relationship is not in good balance, but this can be fixed if he puts his effort into it. As for the specific question "Does Luke love only me?", the most likely answer would be no: probably Luke has feelings for someone else, but hasn't found the courage to fully open up to them.