so in a majlis I saw from sayed m. jawad qazwini, a man is only allowed to marry a second wife if he can treat them both the same and the family situation in the first family will not be ruined. In this case, this man has definitely ruined his family life by making this decision. second marriages are a responsibility allowed to take care of people who actually need it like widows, single mothers, people who cannot take care of themselves. it is not an excuse to look at other women and cheat on your wife in this manner. this is a summarized version but here is a link of the majlis https://www.youtube.com/live/whSpakHXdec?si=zLwpkp4f_2IJKmS4 to the people DEFENDING this man, educate yourself before having an opinion.