You and your boyfriend need to see a shrink......then see a good mechanic.....In case you or your boyfriend did not know that internal cumbustion engines run on fuel not sand and sand as you well know is a n abrasive not a lubricant....you have knacked your engine and it will need some...
Get it repaired quickly, due to the fact that you already hear noises and it is most likely the pads are griding on the rotors......Too late dude if they are because that indicates that you are now going to need to replace the rotors also. total parts around 265.00 and 350.00 labor. That is if...
Sounds like a defective starter selenoid, but could just be the starter motor itself.....Either problem dictates a return to where you purchased and get an exchange....While there get them to test it for you.....