Some of these old predjudices die hard. However, on the practical side, you wouldn't want to start a marriage with a family alighned against you. Also, what the guys eyes to check out what they're lookiing at. The right guy is looking into your eyes. It's sad that your sexual activity is so widely known.
Most parents try to protect kids from their activities.
That's hard to say. If your BF is stationed over seas it possible that you just don't understand the pressures and lonliness he experiences in a foreign land. One slip you can forgive. Anymore, and you should seriously question the relationship. And maybe you can learn something.