Feels to me that Michi's husband is cheating on her.
The sudden change in his work schedule is one sign.
Him being on his phone all the time when she is around is another.
What if her husband and his wife are each other's affair partners? I bet you that's it.
Also, just because it's bothering me...
Page 12 - splitting up that ellipsis on the bottom is weird AF. All three dots should be together.
Page 13 - The word "it's" is also split up at the top. There's no reason that shouldn't be together.
Page 17 - There's a colon that shouldn't be there before the word "I."
I want some, but can't get any. This dude's girl is basically begging him and he doesn't want any lmaooo I know this is a manga, but this shit happens all the time irl sigh...you can never get what you want lol