Worried about friend's future marriage

First post, let me know if there are any mistakes.

My friend (we've known each other for about ten months) is now engaged. At first I was excited, but now I'm a bit worried.

They're in their early twenties and they've been dating for two years and live in a nice three bedroom house (his parents bought. Luckily they love her.)

I know that people like to complain a lot, so I understand that I have a general negative view of her fiancé, however my main worry isn't really his personality but their relationship dynamics and his disrespect and of course--she suspects or better yet knows that he cheated on her.

Long story short, he doesn't clean as much around the house, waits for her to return to clean (of course), plays games instead of spending time with her, to the point where she invites me over to hang out while he's playing GTA on his computer. Allegedly has gone to a strip club (not confirmed if he was with her during that time).

The cheating part was a bit confusing but here it is:

He's a chemical engineer and worked with a woman who set him up with another woman. All three work together.

He went over to her house at 11pm to "ShArE nOtEs" about their project at their job. I don't know how long they were there but he was there long enough for my friend to think he was cheating. What really makes it more credible and worse is when the woman who set him up with the other woman came to my friend soon after that night and kept rubbing her arm and saying "Sorry!" to her in a condescending tone. Not sure how they met but after that night she began to piece everything together.

My friend has repeatedly told her boyfriend that he needs to not socialize with her and of course he did not listen and continued to do so. When we first hung out we were at a bar, and the woman who set the two up was present and they were talking to one another. My friend was of course, disgusted and we left the bar early. Another time was when we were at the same bar for New Years, and the same woman comes, and sets her coat on my friend's seat when were were in the bathroom, which of course, her boyfriend allowed.

Now that the two women left the company, he's being "better." Before, he wouldn't let my friend see what was on his phone, what or who he was texting. Now, AFTER the women left he doesn't care, lets her open his phone and doesn't hide when he's texting.

All that says to me is that he has no one to fuck anymore and deleted any more damning evidence.

I told her after that coat incident at New Year's that she should reconsider marrying him because his behavior is terrible to her. She said she would however, it doesn't matter anymore.

She isn't a pickme, she's a sweet girl, however I think because of her past relation ship (she was with a Narc who SA'd her and manipulated the cops after calling because he was about to jump off her roof to "kill himself" and he never paid off the car they shared together and now she's tied to him financially. Funnily enough her scrote of a fiancé, who has a lot of money, DOES NOT HELP HER WITH THIS and just says "tough luck, should've thought it through" bullshit.)

One last disgusting point to this awful man; we made some new friends and of course the boyfriend is a Andrew Taint fan and is misogynistic as hell ( I found this out YESTERDAY) and he hates women. Her fiance is perfectly fine with this shit behavior because "he's not a womann" which is dumb as hell. I highly doubt I'd be friends with a man who hates woman while I am dating a woman. ?? Like what the fuck!

I already know her future husband will be shit, considering his awful treatment of her.

I would just like some advice on how to help her with this worthless man as she transitions in her life to being his wife and whether you guys have any experience being friends or were in a similar situation? Thank you so much.