He needs to know what happened and why it can't happen again. The longer you wait to explain to him the more damage you risk. Until he knows the truth he'll continue longing to pitch another tent with you. And of course you should avoid chewing tobacco - even when not kissing. It's being with someone not because you want anything from him or her, but because you want to give and share the things that bring you such happiness.
Love is about complete trust, total respect, and unconditional kindness.
Love is being with someone and embracing the things that he or she thinks is his or her worst qualities. Love is sharing your passions and making discoveries with a partner whom supports you and wants you to be your best. The way love makes you feel might be similar, but what defines acts of love at each time in your life is different. You're so young that you're still discovering what it means to love yourself. Therefore, true love is still being defined for you.