Is it normal to be so in love, but develop strong feelings for someone else?
I've been with my fiance for almost 18 months. He is turning 21 this year, and I am turning 19. He's always been so wonderful and I love him more than anything, but lately I have to do everything for him. He's becoming lazier and lazier the more I spoil him, and he complains like a child whenever I ask him to do something for himself, or do something for me. Even if it's the smallest task.
My best friend is also a guy, and we've been talking a lot. I've started to develop these very strong feelings for him, and they won't go away. He also has the same feelings for me. He's very similar to my fiance, except he is more caring, genuine, sweet, and willing to wait on me hand and foot, if I were to ask. We've been close friends for nearly a year, but we just recently poured our hearts out to each other. Unfortunately, he lives a few states away, and the only way I can see him right now is on webcam. He wants to visit me some time, but I'm afraid that would lead to cheating on my fiance.
I am not a cheater, nor have I ever been. But I've never had feelings like this toward anyone else, except my fiance.
My question is:
Is it normal to develop feelings for another after you've already committed your life to someone? Does it mean I was never in love to begin with? Did I make the decision to be in a committed relationship too early in my life? And what do you think I should do? I don't want to lose my fiance, or the love of his family and friends, but I want to make the other guy happy, too. I need help, please. I can't talk to anyone I know about this, because it could be disastrous.