SHOULD I CHOP HIS BALLS OFF OR WHAT?

You may be able to get away with just kicking him in the balls, but I doubt it. Spanish guys are too macho-acting for that to be the end of it. You may get hurt, becuase they do not think twice about being able to hit a girl. If you want to get even, send him a text letting him know that you're on to his lies and that don't appreciate it in any way. Make that the last contact you have with him telling him that if he ever did have a chance for sex he's blown it now and say Hasta Lavista and let it end