I question Yvonne's judgement if she is romantically linked to a man who divorced his wife with no Biblical grounds then quickly linked up with a much younger woman.
Judgement: Regardless of the circumstances, people who lose a long-term spouse, whether through death or divorce, whether it was a divorce that was wanted or one that was not wanted often experience a level of stress that results in poor judgemets on their part. That stress can result in poor judgements related to marital partners--sometimes quick marriages and sometimes a rejection of marriage.
For Yovonne, the issue is not whether or not Danny made a poor decision related to Brandy. The issue for her is where she believes that Danny is now and whether or not Danny is ready for marriage, if that should be considered, and whether or not she is ready to enter into a marital relationship with a man who is the center of so much conflict.
As to Brandy: I doubt that she knew what she was getting into. In my opinion, the intensity of the situation that she found herself in was probably more than many women could tolerate. I have a lot of sympathy for Brandy.
I look at myself and realize that in a similar situation I could make poor decisions. I found myself divorced after almost 12 years of marriage. I did not re-marry for years. My present wife and I will soon be marriled for 27 years. If I were to lose her, I can well immagine that I might make some poor marital decisions. I do not think that I am beyond that. I have an understanding of where Danny may have been when he married Brandy.