Thank you for answering. To the couples who have, has so much lot to do with the longevity and strength of their marriage, such as, till-death-do-us-part commitment they have made to themselves and to each other.
If, ever, some of them first-kiss savers have lasted 10-15 years, still, have not to be judged because of their first kiss. The reason could be is, they gave up on each other. They gave up the battle.
Yes, 'character' of love, faith, and understanding is important, indeed.