is my friend's fiance a psycho/sociopath?

Hi guys, first time posting. I hope this is the right thread. I'm not sure if this guy is normal.

My friend (a girl) is in a heterosexual relationship with a man for about six years and he has always been cool with me but lately he's been doing some stuff that makes me angry.. I have been in emotionally abusive relationships and I'm starting to hate this guy.

He talks to my friend in private and my friend tells me what he says afterward. He says he is going to propose, but two weeks later says it's not the right time because of his finances and so on. My friend also overheard his conversation with his mom one day and his mom was saying that my friend is not good wife material because she doesn't always clean. He agreed. So he wouldn't marry her or propose yet.

Then this guy decided one day that he wanted to elope, even though my friend has always dreamed of an actual real wedding, she agreed and thought it was the best thing for her. So she bought a wedding dress. Then he changed his mind again, saying it's too soon.

This guy was friends with my boyfriend at the time, and from my boyfriend I know that this guy said that he doesn't like to cuddle as much as my friend, so he wouldn't cuddle with her or compromise about it.

He basically showed off the times they argued and he "won" and my friend had to compromise. He won very minor arguments but he won out by waiting her out.

Also, this guy prefers hanging with his guy friends and if he could on weekends he would rather be with his friends than his girlfriend (my friend).

One time we were all hanging out, and he was giving my friend directions to the mailbox, and he was condescending saying "its right there, just go!"

And he's even vented about her to me on occasion, saying that she is getting tough to deal with and he doesn't know what to do anymore.

However, he actually proposed a week ago and now they are getting married in six weeks.

Now all of this back and forth makes me so mad. but besides that, what if that's all it is, a selfish guy who doesn't compromise much? Do you think he will ever become worse?
What if he's not an outright psychopath,just selfish, because if he cheated or lied or something then my friend would consider breaking up with him. But other than that, I think she will stay with him forever. Do you think the relationship will get worse?

Nothing you described about this guy screams "psychopath" to me, but I may be missing something.

I notice this is your first post, so welcome to PC! I hope you find your time here to be of benefit.