A future faker: Someone who--via their words and initial actions--give you the impression of a future so that they can get what they want in the present. They make thinly veiled or even direct references to stuff like marriage, babies, moving in together, going on holiday, being together the following year and other such things that imply or state that you’re a part of their life, and then they either disappear or replace the person you thought they were with someone altogether different. They never own up to their misdemeanors. See the other definition of "getfresh".
Person 1: Why is she having such a hard time getting over this guy?
Person 2: Because she got no closure, he was a complete getfresh.