If you already know that he has been lying to you then why don't you just confront him and end it? You don't need magic to do that. When people have been using magic it seems they forget that communication is a very powerful tool.
If you want to make him suffer a curse would be the better option for you. But curses are a serious thing that need to be done with care, and if you aren't experienced with magic or even the basics you should really study before diving in.
Always remember, when you encounter a problem in your life look for nonmagical ways to solve it first before turning to magic, magic isn't meant to solve every mundane problem we have.