Instead of asking the question, "Is this the right person for me?" why not ask, "Am I being the right person? Am I being a person who comes to a relationship filled with love to share, or am I being a needy person hoping to get love and validation?"
The guys I know who are happily married have a story about how they met their wives. Most involve a moment when they knew that they needed to spend the rest of their lives with this particular woman in order to be happy.