My boyfriend is tolerating his best friend who's cheating on his gf?

i know I dont have a say in this. my boyfriend tells me these things and I dont want him to feel like he can't share to me whats happening around him, but this is bothering me. when he told me, I've pretended like it doesn't.

can I at least point it out to him how morally wrong this is? he knows its wrong but he talks about it like it's not. his friend's girlfriend cheated on the relationship first. I guess thats one of the reasons why he's totally okay with this. which I know is still wrong. he really doesn't like his friend's girlfriend (all his friends dont). worse is his friend's girlfriend is a friend to me, too. of course I met her because of my boyfriend. we're not close, but we've had good times. what do I do? should I do anything? say anything?

honestly, it bothers me more that the fact my boyfriend is one of those people who tolerates their friends of cheating. I don't know.
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you dont have a say in this
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+1 y
I dont plan on telling the girl. I know that makes me a horrible person, but my boyfriend would never trust me again. I just need advice on wether I should tell my boyfriend to stop tolerating it or something? that its wrong?
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+1 y
you all are right. im all good now, so thanks!

the main thing that worried me is remembering something I've read:
"The ethics of your friends and the behavior you tolerate from them says a lot about your character.
The fact that your boyfriend wants you to ignore this clear violation of ethics is a red flag. Not necessarily a break up with red flab, but still worrisome."

but i understand better now. its not something I should worry about. neither is it something my boyfriend can do anything about.
My boyfriend is tolerating his best friend who's cheating on his gf?
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