I'm enjoying all the replies to this thread! Actually Apple Card/Goldman Sachs did me a favor by turning me down. By doing a little research I was able to save $350 and get my new MBP from Amazon delivered in 2 days (assuming it arrives today - out for delivery)!
They assess you as risky, other card companies may not. Your score had nothing to do with it. You have a high Debt to Income ratio. How much is that mortgage each month, and you likely had a card balance when you applied. Did you list your combined income or only yours? Are your credit bureau accounts linked because you are married. There is a ton of information assessed. Your score is not one of the factors used.
Also, where did you get that score. Many of the sites do not provide a real score but an approximation. When I went to buy a car I checked my score. 735 from Credit Karma. Dealer used a real credit engine that looked at all 3 bureaus...average 824.