Be careful, though, because once you start you may not be able to turn back and ask for forgiveness. If she dumps you, and you get her back, then the two of you will probably not get back together. Another thing that you should keep in mind when you are thinking about ex girlfriend insults is that she might want to get you back too.
This will start a “war” which may not be that easy to win. This is why you should let your friends in on your ideas and ask them to help you out. This way, it will be one (her) against many (you and your friends). Here are some of the things you may want to do.
The first and most awful thing you can do, is to try and become friends with her best friend. Don’t try to hook up with her because she is probably not that stupid and will figure it out. Just be nice to her. Ask her how she’s doing. Try to start a real conversation – make her do the talking not you. Allow her to tell you things like what kind of music she likes and what kind of sports she is into.
Then start getting even more personal information. This will really piss of your girlfriend because she will start thinking that she is losing her best friend. This might even scare her because her best friend knows all her secrets and she is your friend now. If you manage to get close enough to her best friend maybe she will tell you some juicy information about your ex.
This will not necessarily happen on purpose. Maybe something will just slip up. This will be one of the good ex girlfriend insults because you can use the information you found out about her to spread rumors or just to embarrass her in front of everybody.
You can, of course, always use the standard ex girlfriend insults and just do mean things to her and pretend that it wasn’t you – like get someone to call her and say mean things to her, or put nasty stuff in her locker, or send her mean text messages, or accidentally spill your drink on her during lunch. You can get as creative as you want to.
But remember that if there is even a 10% chance that you want to get back with her, doing such things will make her hate you even more. Another important thing to keep in mind when you are planning ex girlfriend insults is that you shouldn’t do anything that is criminal. No matter how much you hate her she is not worth serving time for. You can do some things that are borderline, try and scare her or just piss her off, but you should know where the limit is.