Her expression breaks into a grin , broad and bright , at the flourish , and then freezes stiff . She looks down at the magazine , hands still in her lap . She looks up at Bahir . Bahir bites his lower lip , chin dipping as he looks up at Natalie through his lashes . There is a minute scuff of his toe .

Question: Why is there tension between the two ?
Answer: They are fuming at one another .They are mad at one another .They are competing against one another .They are turned on .