Trump has contract-enforced long term liaisons in lieu of marriage; of course he'll try and mock and dismiss an example of what he isn't capable of (a loving relationship).
He raped one of his wives, dreams about fucking his daughter, and rawdogs pornstars with a 'wife' at home. A 'wife' whose name he has gotten wrong, a 'wife' who won't hold his hand in public. Seems Il Douche is as much an authority on relationships and human behavior as he is with diplomacy or geography. Yeah there will be shock everywhere.
Obama's relationship with Michelle always seemed to rile up Trump and other banana republicans too come to think of it. Came across as not enough husband deference, too much actual friendship, with discourse and behavior to match. Let's not forget what a terrorist fist jab can do to tender snowflake feels. That and Obama had foreign females fawning over him constantly, I'm sure we've all seen the irritated Michelle pics. That's man cred that people like Trump crave.