The ice princess fell into a crevasse while they were hiking. We don't know that. There was no scene depicting how it happened. We only have narrative from Husband that may or may not reflect truth
He didn't show much empathy for his wife for 45 years. He knew that he did not love her nor would he ever love her. He used her for his domestic comfort while he worshipped at the alter of the dead. I don't know what you base this assertion on
He admitted he did not tell her about how much the dead girl meant to him and that he lied about it at first when she asked.He was not ready to discuss his first tragic love with a new girlfriend. Not at all rare
His wife was denied the choice of being plan B for this man or plan A to someone else. She was noones plan B. Wife was plan A as girlfriend had been dead for some time
This touches on an important themes in the movie, how secrets effect intimate relationships and how unconscionable it is to use people as this character did. Husband first love was dead. He remarried. Did not use anybody. Would you say that about anyone who remarries?
An example IRL - the woman who marries an unwitting man for the convenience of having a salary and children. Should he be empathetic when she pines for the man she really loved? He has been stripped raw emotionally for decades now he has to drag up sympathy for his deceiver?
It's not harsh when people suffer the consequences of horrible acts of deception.The only deception in the movie is that Husband did not share the inensity of his love for a woman who did before he ever met Wife
The deceived is doing what they never had a chance to do in the first place, make a choice. Sometimes it's to jettison the deceiver from domestic bliss in one way or another. To bad for them.