lead on

US /liːd ɑːn/
UK /liːd ɑːn/
"lead on" picture
1.

期待させる, 誤解させる

to encourage someone to believe or expect something that is false or will not happen

:
He didn't want to lead her on, so he told her he wasn't interested.
彼は彼女を期待させるつもりはなかったので、興味がないと伝えた。
She felt like he was leading her on with his promises.
彼女は彼が約束で自分を期待させているように感じた。