There could be several reasons why someone might express love for their significant other, but remain uncertain about marriage, even after being together for a significant length of time like four years. Here are some possible explanations:
Fear of Commitment: Some individuals may have a deep-seated fear of commitment, which can stem from past relationship experiences, childhood trauma, or observed failed relationships in their surroundings (like their parents' divorce).
Uncertainty about Compatibility: Love for someone does not automatically imply that both individuals are compatible in the long-term. They might love each other, but have different visions for their futures, such as career paths, desired living locations, or decisions about children.
Financial Considerations: Marriage often brings with it financial responsibilities and implications. If someone is not in a financially stable position, they might be hesitant about making the commitment to marry.
Personal Beliefs about Marriage: Not everyone holds the same view of marriage. Some see it as an unnecessary societal construct or prefer a different form of commitment. They can be deeply in love and committed to a relationship without seeing marriage as a necessary step.
Desire for Personal Growth: Some people feel they need more time for personal development before they can commit to something as serious as marriage. They might want to achieve certain personal goals, like furthering their education or advancing in their career, before they consider marriage.
It's crucial that open and honest communication takes place between the two individuals involved. Understanding the specific reason behind the hesitation can be instrumental in deciding the future course of the relationship.