No, it is not necessarily true that if a girl says "I love you" first, she loves the guy more than he loves her. The expression of love and the timing of saying "I love you" can vary greatly between individuals and relationships. Love is a complex and subjective emotion, and there's no universal rule about who feels more love based on who says it first.
People have different ways of expressing and experiencing love, and it's important not to make assumptions or draw conclusions about the depth of someone's feelings based solely on who says "I love you" first. Some individuals may feel comfortable expressing their emotions early in a relationship, while others may take more time to open up.
In a healthy and loving relationship, both partners should feel valued, respected, and cared for. Instead of focusing on who said "I love you" first, it's more important to communicate openly about your feelings and ensure that both partners are on the same page regarding the depth and nature of their emotions.
Comparing the timing of saying "I love you" can lead to unnecessary misunderstandings and put unnecessary pressure on the relationship. It's best to focus on building trust, understanding, and emotional connection with each other to create a strong and meaningful relationship.