From the subs perspective I can just say Logic1 is absolutely right, as in every other than a D/s relationship it is giving and taking from both sides, and even if in some kind of roleplay I can imagine a dom not showing so much that he cares for his sub, I could never imagine serving someone who has not in some way or another earned my trust... so if you do this by opening doors, caring openly, strengthening the subs selfconfidence... it doesn´t always have to be the same way, as long as there is something ;-)
To me it sounds as if you were a pretty good dom in this aspekt.. as long as there are also some of the more obvious domtraits in you ...

best wishes, deigja

ps: why would any dom want his sub to suffer from something not inflicted by himself in any way? it´s rather something out of his control....
(is that a typical sub question?? ;-))