I understand what the OP is saying and I am certainly NOT defending Trump , I care not a jot for either Trump or Clinton to be honest, both have serious allegations levelled at them albeit of a differing fashion .
The fact is Hilary Clinton never went 'sprinting to the divorce lawyers' and her husband was caught out 'actually engaging' in what another man talks about.
Like Hilary Clinton she is the mother of his child and like Hilary Clinton what those who like or dislike her husband feel is of no consequence as she has different priorities.
Lord knows there are plenty of women who have stood by their husbands who have actually been ' serial philanderers ' yet I suspect Melania Trump will be subjected to more focus because Trump is so hated by some. Why is Malania Trump in a different position to where Hilary Clinton found herself?
Time will tell how she will act maybe she will divorce Trump, maybe she will do as millions of other women will do and stand by her husband warts and all, who knows.