Ok I have a 2005 Dodge Neon sxt regular 2.0 motor. One day my ex went to drive it then came back later to drive it, now motor won't do anything but when I go to turn the key to try to start the car I get a humming or buzzing sound from inside and I put jumpers on it, I jump started the started and that cranked over and im clueless what it could be....if.anyone can please help me it be very much appreciated

 

Sounds like your ex did something to it. Please explain better. Does it have gas? What have you checked so far? How many miles? Was he your ex before or after this? Maybe he poured sugar in the gas tank.