Responses
maybe the night he found out Kazumi was seeing the woman who was married? I think so since he said he found out someone that wasn't him was besides Kazumi so he might as well also have someone too
I think you're right.
That's what I was thinking too but it made it so vague, I just couldn't be certain.
When did he sleep with this other guy?
He says, "that night" he thought he had someone else so he should too.
What night?
When did this happen?