I'm not quite sure I understand at all
You want a kink free relationship with your GF, because all or most of your past kink experiences were bad.
That part I understand.
But what exactly stops you from keeping things vanilla between you and the GF in the bedroom?
Do you have a compulsion to act out the things you've grown to hate with her and are seeking ways to prevent that from happening?
Or do you struggle to find pleasure in sexual acts that don't hold bad memories?
Sorry if I seem dense,its quite late, also I'm tired and quite ill atm.