What do you think of me cheating on the love of my life today?
I hope you're joking, why would you cheat on the one you love?
He was just so annoying today, he kept talking about the same meaningless things.
It sounds like your reasons are very petty. It is immoral to betray the ones you love. If he finds out, he'll leave you.
That's just what I want, for him to leave.
There are better ways to end a relationship. By cheating you were being immoral and people will judge you for what you did.