Thomas Markle is suggesting that his daughter, Meghan Markle, is unhappy with her present life and role with the Royal Family. The father even said that his daughter “is smiling through the pain and pressure” of being the Duchess of Sussex.
She'll have been given a fair idea of what would be expected of her before the marriage. If she's too fragile to cope with now being, effectively, public property (unfortunately not in the fun way) then she can always divorce him now. No judge in Britain would give her a penny in the settlement, but she would be out of a situation she seems to hate, and is shit at. If she maintains that this relationship is "TWU WUV!" then she could always commit suicide, as that's pretty much her only other way out since the Royals stopped executing wives who couldn't meet their expectations.
This is the same bum that didn't go to his daughter's wedding and let another man give her away?
Honestly, I don't feel bad for her. All she has to do is keep her mouth shut and not dress like a whore, and she'll get to live a lifestyle most people couldn't even dream of. If you can't handle that, fuck off.