How do women deal with a guy friend dating a woman they don't like?

Same way we deal with girl friends dating guys we don't like. Tolerate it til they break up then bring lighter fluid to burn all their crap.

Bite my tongue then tell him I told you so when they break up

None of her business who he chooses to date.

None of my business who he dates

I really don’t care who my friends date, as long as it’s not a dangerous situation. 🤷🏻‍♀️

If they’re smart, they stay out of it. Unfortunately, it may result in the girlfriend putting pressure on him to end the friendship. If he’s not strong enough to resist that, the friendship wasn’t meant to survive.