John Gill Commentary Judges 16:15

"And she said unto him, How canst thou say, I love thee, when thy heart is not with me? thou hast mocked me these three times, and hast not told me wherein thy great strength lieth." — Judges 16:15 (ASV)

And she said to him, how can you say, I love you, when
your heart is not with me ?
&c.] She took an opportunity, when he was caressing her, to upbraid him with dissembled love, and a false heart: you have mocked me these three times; she had urged him to tell her where his strength lay, and by what it might be weakened, first pretending it might be done by binding him with green withs, and then with new ropes, and a third time by weaving his locks into the web:

and have not told me wherein your great strength lies ;
the thing so frequently and so importunately requested.