Sit him down and tell him you wanna talk serious.
find some thin common that you both like then talk from there!!
No
First, make sure she is serious. Then, you can talk to her boyfriend's mom/dad. That usually solves the problem.
say you want to talk then just build up your confidece and say it
Tell them your serious about breaking up , if he doesn't listen slap him, if that doesnt work leave for good and don't talk and he will realize you were serious.
Stop whining about her boyfriend, be mature, & explain how you feel about the situation. Have a serious talk. Don't shout & don't tell her how to feel about her boyfriend. Communicate & express how you feel. Tell her it hurt you when she lied to you.
Talk to him the way you would talk to a friend. After all, he is you boyFRIEND.
Ok. I have a boyfriend and if he went to hang out with his ex after they didn't talk, I would have some serious issues with it. But sometimes you just have to trust that he won't do anything and it really is just a friendly meeting. Trust him.
Just tell him that you used to be. Go to somewhere where there won't be a lot of people and that you can talk about serious stuff because suicide IS serious stuff. Make sure that you are getting help for that too. I am sure that your boyfriend wouldn't want you to die, and no one deserves to feel like that.
Any respectable boyfriend will not talk too much about his girlfriend.
Make efforts to become better than her boyfriend, and she will talk about you to her ex-boyfriend.
Either sit down with him or your sister and have a serious talk about his behavior and see if you can work on accomplishing and controlling his behavior.