You would think she could find better guys to date than Corey and Rob.
Yes. Especially Lewandowski, who was married with young children. I really don't think he ever considered leaving his wife for Hope. He was just having a fling.
Porter, on the other hand, looks good on paper. He comes from a respected family. He went to Harvard as an undergraduate, and then to Harvard Law. He was a Rhodes Scholar. He's pretty good looking.
So I'm not surprised Hope would fall for him. Apparently they haven't been dating all that long, so it isn't surprising she didn't know the details about his marriages. And he didn't have kids, so he didn't have lasting ties to those marriages.