Delilah said to Samson, Behold, you have mocked me, and told me lies: now tell me, Please, with which you might be bound.
It is evident here that Samson was not living in Delilah's home, or else he would have known about the liers-in-wait.  Apparently, he was visiting her frequently and using her services as a religious prostitute. It also appears that Samson never had the slightest inkling of the mortal danger in which he was placed by this shameful relationship with the treacherous Delilah.