While talking about the breakup, you should make sure that the time is right. No doubt, for some people, breaking before the Valentine's day is worst timing but breaking after the Valentine's day is not a good option either. Therefore, you should choose the right time, when you can talk in detail. Make sure that you do not spoil any special occasion like birthdays or anniversaries.
Selecting the right place is also very important. Do not attempt to discuss this matter in a public place, office or in front of other people because, matters like these should be discussed at suitable places.
Make sure no one is around when you are about to talk to your partner about the breakup.
You should honestly share your concerns and this does not mean that you have to force things or be aggressive. You should be polite and calm while telling your partner about the issues.
Being happy about the breakup will depict that you are being mean and the issues are not really the reasons.
Remember that, your partner might get angry and scream at you but you should not react as some people find it hard to handle the breakup.