3some confusion

Husband was completely okay with a ffm 3some and is completely okay having a random dude suck him off by himself. But it only seems he likes to entertain the idea of a mmf and message people but will never make the call of who and when. Just kinda frustrated he seems to get to explore and I feel pushed to the side. (I'm a bi female and still have only had a female experience with him, never 1on1. Am I just being selfish?