Chapo usually emits a cool and calm demeanor, and though he seems to have a high tolerance for people's shit, there were times he acted on impulse and landed himself into trouble.
He once flew to Miami so he can slay, Slay. He slep on a bench waiting but Slay never showed up.
I don't know the full story, but I reckon Chapo's loss of emotional control had to do with that unfilled adventure.
These day's Chapo is having a difficult time being infatuated with CS. Even if he slapped her silly, he's shown a great deal of restraint where most guys would've ditched.
It's not a matter of him being interesting, more like his situations and what he might do about it while he's known to be temperamental in the past.