How do you know when to breakup with someone?

You know when to break up with someone when it doesn't feel right to be together. You dont enjoy your partner's company and get irritated with them most of the time. You have to think about it and decide what is best for you and what the situation is. Do not break up with someone if it's done because of pressure, listen to your heart's desire. Double check before you do it, and talk to your partner about it if you can.