He sacrificed so much or Kate.....
.....yet it seems like she never did make any for him. Love the movie, but I can't help but be somewhat annoyed with Kate's character. Jack left London and came back for her, he took over for her Dad at the shop when he had a heart attack and he gave up a chance at a well paying, fulfilling job. She essentially did nothing to meet him half way or to put his wants or needs first for an occasion (and when she did she did it with a underlying tone that she wanted to make him feel bad like when she said "I'll uproot our kids from the only home they've known".
Again, I love the movie. But that part always really bothers me.