Falling in love is the easy part. The challenge for couples is how to rekindle the fires of romance from time to time and cultivate the mature, trusting love that is the hallmark of a lasting relationship. When you say “I love you,” what do you mean? Romantic: Based on passion and sexual attraction Best Friends: Fondness and deep affection Logical: Practical feelings based on shared values, financial goals, religion etc. Playful: Feelings evoked by flirtation or feeling challenged Possessive: Jealousy and obsession Unselfish: Nurturing, kindness, and sacrifice What that means to you? Researchers have found that the love we feel in our most committed relationships is typically a combination of two or three different forms of love. But often, two people in the same relationship can have very different versions of how they define love.