Mia: Being in an open marriage isn't as much fun as you thought, huh? That's how it is with the polyamory life. Having freedom to pursue sexual relationships outside your primary one sounds great and all, but in practice it can get messy. Jealousy is common. Did you and your wife set parameters about how you were going to do this? Some monogamy-ish couples date others but keep their spouse as their primary relationship. Others are more into swinging, where they meet up with another couple for sex. Don't make another move in bed or out of it until you and wifey clarify your rules.
Steve: You need to listen to singer Jill Sobule. She had a great song called "I Kissed a Girl." Listen to it. Think about it. Then have a conversation.
Steve: Be a dad. Don't give up. The more you can do for him, the better chances he'll improve. Ask him questions. Offer him answers. Don't give up.