First, they’ll get to know you, then ask you about your past experiences, the you’ll trust him and tell him about the pain that you’ve experienced from your past relationship and then they’ll promise and assure you that it won’t happen again because you’re with them now. Classic lines of those who love to lead on. Watch out, make sure that they are consistent and they will not break their promise, because these people, as ironic as it may be, they might be one of your greatest heartbreak.