It´s nice when people care about you, but sometimes this means that they´ll decide what´s best for you. This is something that´s not nice! It could be something small like what you wear or your hair style, up to the point where someone decides if you can go outside or not. Maybe this is part of a D/s relationship but there should be limits, I mean if someone completely controls you then that´s not healthy. I mean what if he or she tells you that you can´t talk to your family or friends anymore, is that ok with you?
So you should have some clear rules in a D/s relationship, which keeps things safe and fun for both of you. It might seem silly to some but to think that a D/s relationship can´t go wrong is truly silly. I don´t want to sound like a pessimist but it´s just realistic that people change, even when at first someone seemed nice that doesn´t mean that things are going to stay that way forever. Of course it´s nice when things go well and it might seem silly to talk about certain things, but if you want to have a D/s relationship with someone then things can get complicated and it´s better to talk about certain things early in the relationship.
What´s important in a D/s relationship? I think rules are important, things that are ok and things that aren´t ok. It´s also important that you trust eachother, just like in a standard relationship this is important and without trust you really have to ask yourself if this is someone you want to be with. I´m not telling you anything new here but you can´t expect people to go along with everything, no matter how much someone cares about you that doesn´t mean that he or she is in for everything. Maybe there are people who are but I wouldn´t expect this from everyone and definitely not expect this from someone without asking!
Give eachother space, as much as you might care about someone you don´t want to smother someone to death with attention or affection. At first this might seem cute but it gets old real fast! Is it wrong to care? Of course not! But too much of something isn´t a good thing. Sometimes you mean well but not everyone well accept that, so communication should definitely help with figuring out what you and your partner want in the relationship. Communication is the key to a succesful relationship, a D/s relationship isn´t an exception!