what is the difference between unconditional love and conditional love
Unconditional love Some authors make a distinction between unconditional love and conditional love. In conditional love: love is 'earned' on the basis of conscious or unconscious conditions being met by the lover, whereas in unconditional love, love is "given freely" to the loved one "no matter what". Loving is primary. Conditional love requires some kind of finite exchange, whereas unconditional love is seen as infinite and measureless. Unconditional love should not be mistaken with unconditional dedication: unconditional dedication or "duty" refers to an act of the will irrespective of feelings (e.g. a person may consider they have a duty to stay with someone); unconditional love is an act of the feelings irrespective of will.
Love means never having to say you're sorry "Love means never having to say you're sorry" is a catchphrase based on a line from the Erich Segal novel Love Story and was popularized by its 1970 film adaptation starring Ali MacGraw and Ryan O'Neal. The line is spoken twice in the film: once in the middle of the film, by Jennifer Cavalleri (MacGraw's character), when Oliver Barrett (O'Neal) apologizes to her for his anger; and as the last line of the film, by Oliver, when his father says "I'm sorry" after learning of Jennifer's death. In the script the line is phrased slightly differently: "Love means not ever having to say you're sorry."