So it happened, they had sex! I don't know what's wrong with me. I keep picturing them together. He didn't respond to a txt I sent after they had been intimate. I feel uneasy and my stomach is in knots. Is this normal?
If I ask anything, he changes the subject.
It's been like 7 months since your last post. Have BB and KH only just now had sex?
Do you mean you sent him a text when he was still on his date with her, their first sex date? Lots of people don't like receiving texts from their SOs when they are with their OSO, unless it's an emergency. After all, on a date, the couple should be focused on each other. But if it's a long date, like a whole weekend or longer, you could set up ahead of time a time to have a good morning or good night text session, just lasting a short time.
What exactly are you asking him that he refuses to answer? Are you also talking to KH? Is she sharing anything (enough, not enough, too much)?
It is normal for you to picture them having sex, and to feel anxiety (stomach in knots). Even though you wanted this, it is new, you don't know specifically what to expect to happen, and you do fear this will change your relationship with BB. You have hopes it will be a change for the better, since he would be happier if he got the sexual release he needs (more often than you do). But maybe you're afraid it will actually change things for the worse, or BB will neglect his household or childcare duties, etc.
I'm not sure if you read Opening Up in the months since your last post. It covers every eventuality of a new poly relationship, what to expect, how to handle them.