The Eight of Cups reversed indicates that the subject is not adequately considering the emotions and feelings related to the relationship with their current partner. The subject is aware of the situation but prefers to ignore it, since it is easier not to face the connected feelings. This can lead to bad decision making and a lack of clarity in the relationship.
The Emperor reversed indicates that the subject is afraid of the responsibilities associated with marriage. The subject has a strong desire for freedom and feels trapped by the idea of definitively committing himself to his partner. The card suggests that the individual should be more open and willing to care for their partner before they can make a final decision about marriage.
The Hermit indicates that the subject is trying to find answers within, the card suggests that the subject is considering whether or not to marry his current partner. The card also suggests that the individual needs time to reflect on their future and how to make an informed decision about marriage.
In conclusion, the cards suggest that you are currently contemplating marrying your current partner. The cards also indicate that you must be ready to take on the responsibilities associated with marriage and be prepared to put time and effort into your relationship. Therefore, the most likely answer to your question is no: you are not destined to marry your current partner.