Frankly, the whole thing is becoming tiresome.
Shun”s problem is that he’s TOO trusting and TOO nice, which keeps getting him into compromising situations.
Chiyo’s problem is that she’s an untrusting, jealous bitch!
It was a cute manga when they were making progress in their relationship, but it seems to have become:
1) Shun can’t say no to friends or some girl, because he’s too nice, and ends up in a compromising situation.
2) Chiyo gets mad and flips out.
3) Repeat 1 & 2.