How do relationship fights affect men?

All the men (ex-bfs and current bf) I've been with seem really calm during fights, which makes me feel like they're not bothered by what I'm saying. On the other hand, I just need to get all my feelings out there in the open, know that my partner listens and cares and then I'm good to go. I can't end a fight until that's done.
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However, I noticed that when I already "finished" the fight, the men continue mulling over it. Usually it turns out afterwards that they kept thinking about it, or they bring it up again (even days later) after I've already forgotten about it. They sometimes bring up things that I said that expressed dissatisfaction regarding one of their actions, and then I just don't understand why they don't talk during the fight instead or explain their feelings then. It's strange because during the argument they seem unphased but then after it turns out they actually have been affected by it more than they let on. Can someone give me some insight as to what goes on in your head or how you usually process this?
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I talked to my bf about this too, but this is sort of a general thing that I've had with all my boyfriends, even my brother and I just wonder how men are different in this than me.


Source.