You want to do it but you do not know how. You do not want to see her crying, suffering or getting depressed so the best solution is to make her leave you.
There are some issues women will not accept so she will be the one to end-up the relationship.
1. You must seem totally non-interested and detached.
You do not ask her about the job, you make promises then break them, you do not care if she wants to sleep when you listen to music, and you do not call her. She will know something is not right. Any woman knows that a man in love is willing to please the woman in his life and wants to be with her, so if you refuse being with her, she will reject you.
2. Retreat to yourself
Don't say you love her, don't kiss her anymore and do not hold her hand. She will notice something unusual happens and she will give up on you.
3. Be boring
Was she attracted by your sense of humor? Make it seem you don't have it anymore. Pretend to be in a bad mood all the time, do not laugh at jokes and do not make any.
Seem detached and pretend you listen to something else, sports, news on TV as an example. She will not be interested in you and will want you away.
4. What are you saying? Is your birthday today?
Be forgetful. Even if you know about your anniversary or her birthday, say you forgot about that, or even worse, say you don't care. Don't answer her calls or send messages, say you are not in the mood to accompany her home; you'd better call a cab. Your behavior will hurt her and she will think of ending up the relationship.
5. Complain all the time
The more you complain about something, the more nervous she will become. Tell her you do not have any more money, tell her that your boss is an ass and you are very stressed out. She will not want such a man by her side so she's going to dump you.
