Sometimes, when speaking with the spouse, I sense a "your turn to speak" gap, but by the time I actually start speaking, I apparently missed my turn, and I get dinged for interrupting the continuation. Then, later, I get double-dinged for not being communicative enough.
I never quite got the hang of "seizing the conch" (as in _Lord of the Flies_) and holding onto it with a continuous stream of priority-holding conversational nulls while my brain works out what I actually want to say next. I'll sometimes pause to take a breath and before I am able to resume, someone else jumps in.
So I'd love it if I had a cultural conversation timeout even just 15 seconds long. I might actually get to talk and finish a line of thought without someone else trampling over me.
Edit (sibling post): So maybe I should try to get some Finnish friends, then? But it's been a while since I've been to Minnesota or da Yoop, doncha know.
Hopefully your spouse can learn that's your conversational style and adapt to it. Once my partner was made aware of it she started waiting longer before answering. She even apologized once for "cutting me off" during a long pause between thoughts!
In a more formal setting, you may have no better recourse than just learning to adapt, but with someone you're close to, it seems worth talking through explicitly.