The Doctor and Clara both thought that they know what's best for each other and are willing to suffer themselves if it gives the other happiness, the problem being they've both become so tactically similar that they are lying to each other to let the other be happy while not knowing the other is lying and miserable too.
Dominic D
2020-06-03 21:50:40 +0000 UTC
If anything, the Brig was also able to resist delete his emotions before being exported to his body so he would have been able to both save Kate and ignore Danny's order to fly.