Right now he's trying his damnedest to keep things from blowing apart any worse than just being trapped in this place. And keeping his flares of jealousy from scorching anything valuable.
"Maybe stop acting like someone in here is gonna know what to do." Granted, someone here might be able to help. Someone that knows how whatever it is she does works, someone that knows something similar. However, Han is betting against that person being Reid.
He's a smart guy, from what he's seen, but he's not a Jedi.