Should i tell my best friend that her boyfriend is cheating on her?

if you "would love to burst her bubble," then you are not her friend.

you are her enemy.

since you are her enemy, then you want her to be hurt.

since you want her to be hurt, the best thing to do is NOT tell her that she is being cheated on.

that way, it will hurt her more when she finds out, because the cheating will have gone on for longer.

then you can enjoy her pain more.

If he’s cheating on her with you that’s gonna be a bad situation. 

Yes - but in a kind way - not in mean way. A real friend will tell her what she needs to hear even though she doesn't want to hear it. (It sounds like you're being too hard on her - please remember that unfortunately many people are fooled and think that their relationship is perfect.)

Here's some information about the characteristics of a real friend from the book True Love Lasts:

A real friend:

• allows their friend to be themselves, really listens to their friend, and doesn’t share what’s been said

• can be trusted, supports and helps you, treats you with respect, sticks with you

• comes and talks with you as soon as possible when there’s a problem in the friendship

• never encourages you to make a bad choice

• encourages you to make a good choice - even when weak people are encouraging you to make a bad choice

• tells you what you need to hear even though you don’t want to hear it

• is willing to forgive you when you mess up

• understands that friendships change and can accept those changes after talking it out

Hope this helps!

Stay out of it.  MYOB

What a good friend you are. 

But yes - she should know (although she might not thank you for it)

Best friend and you want to burst her bubble?

If you have proof, then turn it over to her, including the edition you shot with him.

Mind your own business."

Have you heard the expression, "they shoot the messenger, don't they?"

If you tell her that her bf is cheating, it is much easier to get angry at YOU than to get angry at her bg and losing her bf.  So YOU will lose your friendship.

And she may already suspect it but decided to ignore it. Or she may be in denial and refuse to believe you. Then start spreading rumors that you are a liar.

Especially do NOT hurt another person because YOU cannot work with YOUR jealousy.  Generate some commpassion in your heart because you know her bf will end up hurting her .... and stop trying to make YOU be the one who hurts her.You SAY she is your best friend? Then ACT like one. Stop wishing to "burst her bubble".  Life will do it for you, and you want to be there to help her recover ... NOT the one who bursts her bubble and who she hates.

Not unless she's done something to u otherwise doesn't sound like ur a gd friend

this is your best friend and you would love to burst her bubble and make her upset? alright..... well, karma will come for you next.