You can't really apologize to your girlfriend after sleeping with her best friend because she's lost trust in you, and her best friend. You shouldn't have done it in the first place. I've experienced this but actually I handled it really well. I made it so that my girlfriend and her best friend made me their enemy, attempting to save their friendship. If you're sleeping around with her best friend and most likely other people, then ask yourself, do you really want to be with the girl you were with? Just think about that next time, if there is a next time.
cry. its a winner.
The best way to apologize to a friend that is mad at you is to do it in person. That way the friend can see that you are genuinely sorry.
Then the real question is why isn't your best friend your girlfriend........?
The duration of My Best Friend's Girlfriend is 1.92 hours.
My Best Friend's Girlfriend was created on 2008-02-13.
she had already cheated by sleeping with my best friend and still she is black mailing me with the support of some powerful rich woman's.
Apologize. The end.
If you feel bad about it you can apologise.
Sharing your girlfriend with your best friend is the ultimate demonstration of your friendship. It is even more meaningful if he does not have a girlfriend.
Try to forget her in anyway you can if she really loved you she would never sleep with your best friend and your best friend was never your true friend --- I'd literally crush my "best friends" nuts, and drag my "girlfriend"s name through the mud so bad that she cant show her face in town ever again.
Get rid of so-called "best friend". If you're girlfriend is true to you, she will stay with you.
Just apologize!! Say that you were wrong and that you are sorry.