A lot of people end up having regrets because they slept with so many people and wished they would of saved themselves for the one "true love" they eventually find. You shouldn't not get serious with someone because you haven't tried a variety of men out, thats just ridiculous. If he treats you right and loves you and you do the same for him you will have no regrets.
One day the Moon said to me, "If he makes you cry, why dont you leave him?" I looked up at the Moon and said, "Moon would you ever leave your sky?"