It’s funny how we plan exit strategies for everything but our relationships. We always search for a new job before leaving our current job. We find a new apartment before we leave our old one. We plan for everything but leaving our relationships because that would be, well, callous.
So not true and thinking that way will not serve you well.
If you are in a relationship and it’s not going well, you must plan before you leave. Do not get sucked into the mindset that it’s not going that badly so you should wait until there is a reason to leave. How bad does it have to get before you decide to leave?
Btw, provoking an argument and walking out is beneath you (unless the argument is abusive – then get out immediately).
Cold-hearted is not planning how you’ll leave, cold-hearted is leaving a wake of destruction behind you. Planning to separate is rational, logical, and it will protect both of you. Do it right and you can walk away with a light heart and a clear conscience.