My family and friends are in the middle of an intense conversation and I am not going to introduce my boyfriend.
Don't you think you should have introduced your boyfriend sooner?
Oh my god I didn't even think of that.
If your significant other is important to you, you should introduce him to your family and friends. It is important to make him feel like he's included and that you value him as well as your family.
Shit I'm going to introduce the asshole now.
Your boyfriend will be appreciate being introduced and he will know that you value him as a partner. And although the timing isn't perfect, at least you know it's the right thing to do.