You don't need to use direct thoughts to achieve that.
IMO, direct thoughts are a crutch a lot of writers use to convey emotion, and the result is usually less effective than the alternative, which is to convey those emotions indirectly.
Oh, he was so fucking cute.
Dana bit her lip hard, then shook her head as though that simple denial could somehow abrogate her instant attraction.
She wouldn't think about him. Couldn't think about him. She turned back to the action, refusing to be distracted, even as her heart thumped faster and the heat of a blush filled her face.
Everything remains in 3rd person past tense, but the same thoughts still come through in her voice.
IMO, doing it this way it far superior to using direct thoughts.