It's very common for people involved with Dommes online or otherwise, to hide their activity from their partner. This leads them into a dark world of lies and secrecy that could easily be avoided with honesty from the outset.
This isn't all kinksters, as many do have honest relationships, but a huge amount of you do not have honest relationships. If you are leading a double life, what is your reason for not telling your partner at the outset of them, that you have kinks and/or fetishes?
Why did you decide not to tell them, or to try and explore those kinks with your partner (or gain permission to explore them with other people), rather than doing it all behind your partners back - leading to a double life full of lies.
Of course you now also realise that the secret life you lead, leaves you wide open for blackmail. But you kind of like that don't you? Perhaps that is one of your motivations.
True point. A slave in a relationship should definetly not lie to his girlfriend or wife. If this does not work for the slave for whatever reasons, he should definetly stay single and just a slave. Like I do.